Best Jolly Nature Pokemon in Ultra Sun & Ultra Moon (+Speed)

JOLLY NATURE CALCULATOR

Check how Jolly nature changes any Pokemon's stats at level 50. Jolly boosts Speed by 10% and cuts Sp. Attack by the same amount, so it matters more for some builds than others. Type a name below to see the exact stat shift and whether Jolly is the right call.

In Ultra Sun & Ultra Moon, natures are permanent and can't be changed after catching or breeding.

Select a Pokemon above to see how Jolly changes their stats

BEST JOLLY NATURE POKEMON

Outpacing the opponent by one point can flip a match. Jolly adds 10% Speed and lowers Sp. Attack, which physical attackers don't mind. For Ultra Sun & Ultra Moon, Yveltal, Arceus, Rayquaza, and others all run Jolly in competitive play. Z-Moves and Mega Evolution both benefit from Jolly. The Speed boost stays after transforming.

Jolly raises Speed by 10% and lowers Sp. Attack by 10%. Fast physical attackers that need to outspeed threats. 100 Pokemon competitively run this nature.

SHOWINGRegional59

#	Pokemon	Tier	Role	Ability	+Spe	-SpA	Spe
1	Yveltal DARKFLYING	S	Bulky Support	Darkaura	99+15	131-16	99
2	Arceus NORMAL	S	Physical Attacker	Multitype	120+17	120-14	120
3	Rayquaza DRAGONFLYING	S	Physical Attacker	Airlock	95+14	150-17	95
4	Zekrom DRAGONELECTRIC	S	Physical Attacker	Teravolt	90+14	120-14	90
5	Solgaleo PSYCHICSTEEL	S	Physical Attacker	Fullmetalbody	97+14	113-14	97
6	Marshadow FIGHTINGGHOST	A	Physical Attacker	Technician	125+17	90-11	125
7	Scizor BUGSTEEL	A	Physical Attacker	Swarm	65+11	55-8	65
8	Zygarde DRAGONGROUND	A	Physical Attacker	Aurabreak	95+14	81-11	95
9	Groudon GROUND	B	Physical Attacker	Drought	90+14	100-12	90
10	Excadrill GROUNDSTEEL	B	Physical Attacker	Mold Breaker	88+14	50-7	88
11	Kartana GRASSSTEEL	B	Physical Revenge Killer	Beastboost	109+16	59-8	109
12	Tyranitar ROCKDARK	B	Physical Attacker	Sand Stream	61+11	95-12	61
13	Garchomp DRAGONGROUND	B	Physical Attacker	Rough Skin	102+15	80-10	102
14	Jirachi STEELPSYCHIC	B	Physical Attacker	Serenegrace	100+15	100-12	100
15	Weavile DARKICE	B	Physical Attacker	Pressure	125+17	45-7	125
16	Gliscor GROUNDFLYING	B	Bulky Support	Poisonheal	95+14	45-7	95
17	Victini PSYCHICFIRE	B	Physical Revenge Killer	Victorystar	100+15	100-12	100
18	Kommo-o DRAGONFIGHTING	B	Physical Attacker	Bulletproof	85+13	100-12	85
19	Infernape FIREFIGHTING	B	Physical Attacker	Blaze	108+16	104-13	108
20	Azelf PSYCHIC	B	Bulky Support	Levitate	115+16	125-15	115
21	Zeraora ELECTRIC	B	Physical Attacker	Voltabsorb	143+19	102-13	143
22	Aerodactyl ROCKFLYING	B	Physical Attacker	Rockhead	130+18	60-8	130
23	Terrakion ROCKFIGHTING	B	Physical Attacker	Justified	108+16	72-10	108
24	Mew PSYCHIC	B	Bulky Support	Synchronize	100+15	100-12	100
25	Cloyster WATERICE	B	Physical Attacker	Skilllink	70+12	85-11	70
26	Heracross BUGFIGHTING	B	Physical Attacker	Swarm	85+13	40-6	85
27	Salamence DRAGONFLYING	B	Physical Revenge Killer	Moxie	100+15	110-13	100
28	Pheromosa BUGFIGHTING	B	Physical Attacker	Beastboost	151+20	137-16	151
29	Cranidos ROCK	B	Physical Revenge Killer	Mold Breaker	58+11	30-5	58
30	Gyarados WATERFLYING	B	Physical Attacker	Moxie	81+13	60-8	81
31	Breloom GRASSFIGHTING	B	Physical Attacker	Effect Spore	70+12	60-8	70
32	Lucario FIGHTINGSTEEL	B	Physical Attacker	Justified	90+14	115-14	90
33	Mienshao FIGHTING	B	Physical Attacker	Regenerator	105+15	95-12	105
34	Gallade PSYCHICFIGHTING	B	Physical Attacker	Justified	80+13	65-9	80
35	Mimikyu GHOSTFAIRY	B	Physical Attacker	Disguise	96+14	50-7	96
36	Darmanitan FIRE	B	Physical Revenge Killer	Sheerforce	95+14	30-5	95
37	Buzzwole BUGFIGHTING	B	Physical Attacker	Beastboost	79+13	53-8	79
38	Mamoswine ICEGROUND	B	Physical Attacker	Thickfat	80+13	70-9	80
39	Staraptor NORMALFLYING	B	Physical Attacker	Reckless	100+15	50-7	100
40	Krookodile GROUNDDARK	B	Physical Revenge Killer	Intimidate	92+14	65-9	92
41	Haxorus DRAGON	B	Physical Attacker	Mold Breaker	97+14	60-8	97
42	Crobat POISONFLYING	B	Physical Attacker	Infiltrator	130+18	70-9	130
43	Arcanine FIRE	B	Physical Attacker	Intimidate	95+14	100-12	95
44	Landorus GROUNDFLYING	B	Physical Attacker	Sandforce	101+15	115-14	101
45	Ambipom NORMAL	B	Physical Attacker	Technician	115+16	60-8	115
46	Scyther BUGFLYING	B	Physical Attacker	Technician	105+15	55-8	105
47	Monferno FIREFIGHTING	C	Physical Attacker	Ironfist	81+13	78-10	81
48	Talonflame FIREFLYING	C	Physical Attacker	Galewings	126+17	74-10	126
49	Dodrio NORMALFLYING	C	Physical Attacker	Earlybird	110+16	60-8	110
50	Dugtrio GROUND	C	Physical Attacker	Arenatrap	120+17	50-7	120
51	Aipom NORMAL	C	Utility	Skilllink	85+13	40-6	85
52	Sneasel DARKICE	C	Physical Attacker	Keeneye	115+16	35-6	115
53	Flygon GROUNDDRAGON	C	Physical Revenge Killer	Levitate	100+15	80-10	100
54	Poliwag WATER	C	Utility	Waterabsorb	90+14	40-6	90
55	Gabite DRAGONGROUND	C	Physical Attacker	Rough Skin	82+13	50-7	82
56	Axew DRAGON	C	Physical Attacker	Mold Breaker	57+10	30-5	57
57	Meowth NORMAL	C	Physical Attacker	Technician	90+14	40-6	90
58	Medicham FIGHTINGPSYCHIC	C	Physical Attacker	Pure Power	80+13	60-8	80
59	Golbat POISONFLYING	C	Physical Attacker	Innerfocus	90+14	65-9	90
60	Pikipek NORMALFLYING	C	Physical Revenge Killer	Skilllink	65+11	30-5	65
61	Taillow NORMALFLYING	C	Physical Attacker	Guts	85+13	30-5	85
62	Diglett GROUND	C	Physical Attacker	Arenatrap	95+14	35-6	95
63	Sandile GROUNDDARK	C	Utility	Moxie	65+11	35-6	65
64	Vigoroth NORMAL	C	Physical Attacker	Vitalspirit	90+14	55-8	90
65	Teddiursa NORMAL	C	Utility	Quickfeet	40+9	50-7	40
66	Fraxure DRAGON	C	Physical Attacker	Mold Breaker	67+11	40-6	67
67	Crawdaunt WATERDARK	C	Physical Attacker	Adaptability	55+10	90-11	55
68	Smeargle NORMAL	C	Utility	Owntempo	75+12	20-4	75
69	Doduo NORMALFLYING	C	Physical Attacker	Earlybird	75+12	35-6	75
70	Buneary NORMAL	C	Physical Attacker	Limber	85+13	44-7	85
71	Toxicroak POISONFIGHTING	C	Physical Attacker	Dryskin	85+13	86-11	85
72	Krokorok GROUNDDARK	C	Physical Attacker	Intimidate	74+12	45-7	74
73	Litleo FIRENORMAL	C	Utility	Moxie	72+12	73-10	72
74	Beedrill BUGPOISON	C	Bulky Support	Swarm	75+12	45-7	75
75	Delibird ICEFLYING	C	Physical Attacker	Hustle	75+12	65-9	75
76	Basculin WATER	C	Physical Attacker	Adaptability	98+15	80-10	98
77	Stantler NORMAL	C	Physical Attacker	Intimidate	85+13	85-11	85
78	Shelgon DRAGON	C	Physical Attacker	Rockhead	50+10	60-8	50
79	Carvanha WATERDARK	C	Physical Attacker	Speed Boost	65+11	65-9	65
80	Purugly NORMAL	C	Physical Attacker	Defiant	112+16	64-9	112
81	Shedinja BUGGHOST	C	Physical Attacker	Wonderguard	40+9	30-5	40
82	Scrafty DARKFIGHTING	C	Physical Attacker	Moxie	58+11	45-7	58
83	Anorith ROCKBUG	C	Physical Attacker	Battlearmor	75+12	40-6	75
84	Scraggy DARKFIGHTING	C	Physical Attacker	Moxie	48+10	35-6	48
85	Tauros NORMAL	C	Physical Attacker	Intimidate	110+16	40-6	110
86	Machop FIGHTING	C	Utility	Noguard	35+8	35-6	35
87	Stunky POISONDARK	D	Physical Attacker	Stench	74+12	41-7	74
88	Minccino NORMAL	D	Utility	Skilllink	75+12	40-6	75
89	Fletchling NORMALFLYING	D	Utility	Galewings	62+11	40-6	62
90	Dwebble BUGROCK	D	Physical Attacker	Sturdy	55+10	35-6	55
91	Magby FIRE	D	Physical Attacker	Flame Body	83+13	70-9	83
92	Glameow NORMAL	D	Physical Attacker	Limber	85+13	42-7	85
93	Darumaka FIRE	D	Utility	Hustle	50+10	15-4	50
94	Gible DRAGONGROUND	D	Utility	Rough Skin	42+9	40-6	42
95	Charmander FIRE	D	Utility	Blaze	65+11	60-8	65
96	Larvitar ROCKGROUND	D	Physical Attacker	Guts	41+9	45-7	41
97	Bagon DRAGON	D	Physical Attacker	Sheerforce	50+10	40-6	50
98	Swinub ICEGROUND	D	Utility	Snowcloak	50+10	30-5	50
99	Venipede BUGPOISON	D	Physical Attacker	Speed Boost	57+10	30-5	57
100	Goldeen WATER	D	Physical Attacker	Lightningrod	63+11	35-6	63

Yveltal

DARK FLYING

Role

Bulky Support

Ability

Darkaura

+Spe

99 +15

Spe

Arceus

NORMAL

Role

Physical Attacker

Ability

Multitype

+Spe

120 +17

Spe

120

Rayquaza

DRAGON FLYING

Role

Physical Attacker

Ability

Airlock

+Spe

95 +14

Spe

Zekrom

DRAGON ELECTRIC

Role

Physical Attacker

Ability

Teravolt

+Spe

90 +14

Spe

Solgaleo

PSYCHIC STEEL

Role

Physical Attacker

Ability

Fullmetalbody

+Spe

97 +14

Spe

Marshadow

FIGHTING GHOST

Role

Physical Attacker

Ability

Technician

+Spe

125 +17

Spe

125

Scizor

BUG STEEL

Role

Physical Attacker

Ability

Swarm

+Spe

65 +11

Spe

Zygarde

DRAGON GROUND

Role

Physical Attacker

Ability

Aurabreak

+Spe

95 +14

Spe

Groudon

GROUND

Role

Physical Attacker

Ability

Drought

+Spe

90 +14

Spe

Excadrill

GROUND STEEL

Role

Physical Attacker

Ability

Mold Breaker

+Spe

88 +14

Spe

Kartana

GRASS STEEL

Role

Physical Revenge Killer

Ability

Beastboost

+Spe

109 +16

Spe

109

Tyranitar

ROCK DARK

Role

Physical Attacker

Ability

Sand Stream

+Spe

61 +11

Spe

Garchomp

DRAGON GROUND

Role

Physical Attacker

Ability

Rough Skin

+Spe

102 +15

Spe

102

Jirachi

STEEL PSYCHIC

Role

Physical Attacker

Ability

Serenegrace

+Spe

100 +15

Spe

100

Weavile

DARK ICE

Role

Physical Attacker

Ability

Pressure

+Spe

125 +17

Spe

125

Gliscor

GROUND FLYING

Role

Bulky Support

Ability

Poisonheal

+Spe

95 +14

Spe

Victini

PSYCHIC FIRE

Role

Physical Revenge Killer

Ability

Victorystar

+Spe

100 +15

Spe

100

Kommo-o

DRAGON FIGHTING

Role

Physical Attacker

Ability

Bulletproof

+Spe

85 +13

Spe

Infernape

FIRE FIGHTING

Role

Physical Attacker

Ability

Blaze

+Spe

108 +16

Spe

108

Azelf

PSYCHIC

Role

Bulky Support

Ability

Levitate

+Spe

115 +16

Spe

115

Zeraora

ELECTRIC

Role

Physical Attacker

Ability

Voltabsorb

+Spe

143 +19

Spe

143

Aerodactyl

ROCK FLYING

Role

Physical Attacker

Ability

Rockhead

+Spe

130 +18

Spe

130

Terrakion

ROCK FIGHTING

Role

Physical Attacker

Ability

Justified

+Spe

108 +16

Spe

108

Mew

PSYCHIC

Role

Bulky Support

Ability

Synchronize

+Spe

100 +15

Spe

100

Cloyster

WATER ICE

Role

Physical Attacker

Ability

Skilllink

+Spe

70 +12

Spe

Heracross

BUG FIGHTING

Role

Physical Attacker

Ability

Swarm

+Spe

85 +13

Spe

Salamence

DRAGON FLYING

Role

Physical Revenge Killer

Ability

Moxie

+Spe

100 +15

Spe

100

Pheromosa

BUG FIGHTING

Role

Physical Attacker

Ability

Beastboost

+Spe

151 +20

Spe

151

Cranidos

ROCK

Role

Physical Revenge Killer

Ability

Mold Breaker

+Spe

58 +11

Spe

Gyarados

WATER FLYING

Role

Physical Attacker

Ability

Moxie

+Spe

81 +13

Spe

Breloom

GRASS FIGHTING

Role

Physical Attacker

Ability

Effect Spore

+Spe

70 +12

Spe

Lucario

FIGHTING STEEL

Role

Physical Attacker

Ability

Justified

+Spe

90 +14

Spe

Mienshao

FIGHTING

Role

Physical Attacker

Ability

Regenerator

+Spe

105 +15

Spe

105

Gallade

PSYCHIC FIGHTING

Role

Physical Attacker

Ability

Justified

+Spe

80 +13

Spe

Mimikyu

GHOST FAIRY

Role

Physical Attacker

Ability

Disguise

+Spe

96 +14

Spe

Darmanitan

FIRE

Role

Physical Revenge Killer

Ability

Sheerforce

+Spe

95 +14

Spe

Buzzwole

BUG FIGHTING

Role

Physical Attacker

Ability

Beastboost

+Spe

79 +13

Spe

Mamoswine

ICE GROUND

Role

Physical Attacker

Ability

Thickfat

+Spe

80 +13

Spe

Staraptor

NORMAL FLYING

Role

Physical Attacker

Ability

Reckless

+Spe

100 +15

Spe

100

Krookodile

GROUND DARK

Role

Physical Revenge Killer

Ability

Intimidate

+Spe

92 +14

Spe

Haxorus

DRAGON

Role

Physical Attacker

Ability

Mold Breaker

+Spe

97 +14

Spe

Crobat

POISON FLYING

Role

Physical Attacker

Ability

Infiltrator

+Spe

130 +18

Spe

130

Arcanine

FIRE

Role

Physical Attacker

Ability

Intimidate

+Spe

95 +14

Spe

Landorus

GROUND FLYING

Role

Physical Attacker

Ability

Sandforce

+Spe

101 +15

Spe

101

Ambipom

NORMAL

Role

Physical Attacker

Ability

Technician

+Spe

115 +16

Spe

115

Scyther

BUG FLYING

Role

Physical Attacker

Ability

Technician

+Spe

105 +15

Spe

105

Monferno

FIRE FIGHTING

Role

Physical Attacker

Ability

Ironfist

+Spe

81 +13

Spe

Talonflame

FIRE FLYING

Role

Physical Attacker

Ability

Galewings

+Spe

126 +17

Spe

126

Dodrio

NORMAL FLYING

Role

Physical Attacker

Ability

Earlybird

+Spe

110 +16

Spe

110

Dugtrio

GROUND

Role

Physical Attacker

Ability

Arenatrap

+Spe

120 +17

Spe

120

Aipom

NORMAL

Role

Utility

Ability

Skilllink

+Spe

85 +13

Spe

Sneasel

DARK ICE

Role

Physical Attacker

Ability

Keeneye

+Spe

115 +16

Spe

115

Flygon

GROUND DRAGON

Role

Physical Revenge Killer

Ability

Levitate

+Spe

100 +15

Spe

100

Poliwag

WATER

Role

Utility

Ability

Waterabsorb

+Spe

90 +14

Spe

Gabite

DRAGON GROUND

Role

Physical Attacker

Ability

Rough Skin

+Spe

82 +13

Spe

Axew

DRAGON

Role

Physical Attacker

Ability

Mold Breaker

+Spe

57 +10

Spe

Meowth

NORMAL

Role

Physical Attacker

Ability

Technician

+Spe

90 +14

Spe

Medicham

FIGHTING PSYCHIC

Role

Physical Attacker

Ability

Pure Power

+Spe

80 +13

Spe

Golbat

POISON FLYING

Role

Physical Attacker

Ability

Innerfocus

+Spe

90 +14

Spe

Pikipek

NORMAL FLYING

Role

Physical Revenge Killer

Ability

Skilllink

+Spe

65 +11

Spe

Taillow

NORMAL FLYING

Role

Physical Attacker

Ability

Guts

+Spe

85 +13

Spe

Diglett

GROUND

Role

Physical Attacker

Ability

Arenatrap

+Spe

95 +14

Spe

Sandile

GROUND DARK

Role

Utility

Ability

Moxie

+Spe

65 +11

Spe

Vigoroth

NORMAL

Role

Physical Attacker

Ability

Vitalspirit

+Spe

90 +14

Spe

Teddiursa

NORMAL

Role

Utility

Ability

Quickfeet

+Spe

40 +9

Spe

Fraxure

DRAGON

Role

Physical Attacker

Ability

Mold Breaker

+Spe

67 +11

Spe

Crawdaunt

WATER DARK

Role

Physical Attacker

Ability

Adaptability

+Spe

55 +10

Spe

Smeargle

NORMAL

Role

Utility

Ability

Owntempo

+Spe

75 +12

Spe

Doduo

NORMAL FLYING

Role

Physical Attacker

Ability

Earlybird

+Spe

75 +12

Spe

Buneary

NORMAL

Role

Physical Attacker

Ability

Limber

+Spe

85 +13

Spe

Toxicroak

POISON FIGHTING

Role

Physical Attacker

Ability

Dryskin

+Spe

85 +13

Spe

Krokorok

GROUND DARK

Role

Physical Attacker

Ability

Intimidate

+Spe

74 +12

Spe

Litleo

FIRE NORMAL

Role

Utility

Ability

Moxie

+Spe

72 +12

Spe

Beedrill

BUG POISON

Role

Bulky Support

Ability

Swarm

+Spe

75 +12

Spe

Delibird

ICE FLYING

Role

Physical Attacker

Ability

Hustle

+Spe

75 +12

Spe

Basculin

WATER

Role

Physical Attacker

Ability

Adaptability

+Spe

98 +15

Spe

Stantler

NORMAL

Role

Physical Attacker

Ability

Intimidate

+Spe

85 +13

Spe

Shelgon

DRAGON

Role

Physical Attacker

Ability

Rockhead

+Spe

50 +10

Spe

Carvanha

WATER DARK

Role

Physical Attacker

Ability

Speed Boost

+Spe

65 +11

Spe

Purugly

NORMAL

Role

Physical Attacker

Ability

Defiant

+Spe

112 +16

Spe

112

Shedinja

BUG GHOST

Role

Physical Attacker

Ability

Wonderguard

+Spe

40 +9

Spe

Scrafty

DARK FIGHTING

Role

Physical Attacker

Ability

Moxie

+Spe

58 +11

Spe

Anorith

ROCK BUG

Role

Physical Attacker

Ability

Battlearmor

+Spe

75 +12

Spe

Scraggy

DARK FIGHTING

Role

Physical Attacker

Ability

Moxie

+Spe

48 +10

Spe

Tauros

NORMAL

Role

Physical Attacker

Ability

Intimidate

+Spe

110 +16

Spe

110

Machop

FIGHTING

Role

Utility

Ability

Noguard

+Spe

35 +8

Spe

Stunky

POISON DARK

Role

Physical Attacker

Ability

Stench

+Spe

74 +12

Spe

Minccino

NORMAL

Role

Utility

Ability

Skilllink

+Spe

75 +12

Spe

Fletchling

NORMAL FLYING

Role

Utility

Ability

Galewings

+Spe

62 +11

Spe

Dwebble

BUG ROCK

Role

Physical Attacker

Ability

Sturdy

+Spe

55 +10

Spe

Magby

FIRE

Role

Physical Attacker

Ability

Flame Body

+Spe

83 +13

Spe

Glameow

NORMAL

Role

Physical Attacker

Ability

Limber

+Spe

85 +13

Spe

Darumaka

FIRE

Role

Utility

Ability

Hustle

+Spe

50 +10

Spe

Gible

DRAGON GROUND

Role

Utility

Ability

Rough Skin

+Spe

42 +9

Spe

Charmander

FIRE

Role

Utility

Ability

Blaze

+Spe

65 +11

Spe

Larvitar

ROCK GROUND

Role

Physical Attacker

Ability

Guts

+Spe

41 +9

Spe

Bagon

DRAGON

Role

Physical Attacker

Ability

Sheerforce

+Spe

50 +10

Spe

Swinub

ICE GROUND

Role

Utility

Ability

Snowcloak

+Spe

50 +10

Spe

Venipede

BUG POISON

Role

Physical Attacker

Ability

Speed Boost

+Spe

57 +10

Spe

Goldeen

WATER

Role

Physical Attacker

Ability

Lightningrod

+Spe

63 +11

Spe

JOLLY NATURE GUIDE

+10%Speed

-10%Sp. Attack

Flavor Preference

Likes Sweet, dislikes Dry

Competitive Role

Fast physical attackers that need to outspeed threats.

Jolly vs Adamant

Choose Jolly

+Speed / -Sp. Attack

Pokemon in contested speed tiers (base 80-110)
Sweepers that need to outspeed threats before attacking
Pokemon without priority moves or speed-boosting setups

Choose Adamant

+Attack / -Sp. Attack

Pokemon with priority moves that bypass speed
Dragon Dance / Shift Gear users that fix speed in-game
Wallbreakers that need maximum damage output

How to Get

SynchronizeLead with a Jolly Pokemon that has the Synchronize ability. Wild Pokemon will match its nature. (Gen 3+)

BreedingGive the parent with Jolly nature an Everstone. The offspring will inherit it. (100% since Gen 5)

Nature MintUse a Jolly Mint to change stat effects to Jolly. The original nature name stays but stats change. (Gen 8+)

Other +Speed Natures

JOLLY FAQs

What does the Jolly nature do in Pokemon?

Jolly gives your Pokemon 10% more Speed at the cost of Sp. Attack. That tradeoff works best when the lowered stat isn't part of your moveset. Pokemon with Jolly nature prefer Sweet flavor and dislike Dry.

What are the best Jolly nature Pokemon?

Competitively, Yveltal, Arceus, Rayquaza, and Zekrom run Jolly most often. The +Speed boost complements their role, and the -Sp. Attack penalty barely affects their game plan.

Is Jolly a good nature for competitive Pokemon?

For the right Pokemon, Jolly is one of the best natures you can pick. It's one of the most-used natures in competitive formats. Just don't slap it on something that uses Sp. Attack-based moves.

How do I get a Jolly nature Pokemon?

Breeding with an Everstone is the most reliable approach since Gen 5. The parent holding it passes its nature to every offspring. Synchronize works for wild catches. And if you already have the Pokemon, a Jolly Mint from the Battle Tower changes the stat effects to Jolly.

Should I use Jolly or Adamant?

Short answer: Jolly for speed, Adamant for power. There's no universal best. Check your Pokemon's base stats and common threats in the format you're playing to decide which tradeoff is better.