S

Tyranitar

A+

Metagross
Swampert
Blissey
Zapdos

A

Skarmory
Gengar
Dugtrio
Suicune


A-

Salamence
Celebi
Snorlax
Jirachi
Moltres


B+

Milotic
Magneton
Claydol
Starmie
Cloyster
Jolteon
Heracross


B

Flygon
Aerodactyl
Forretress
Breloom
Gyarados



B-

Charizard
Venusaur
Regice
P2
Dragonite
Hariyama
Jynx
Ludi/Kingdra
Vaporeon
Marowak
Machamp


C: these mons are still good enough to top ladder with if supported/supporting right

Ninjask
Scizor
Camerupt
Smeargle
Cacturne
Weezing
Umbreon
Houndoom
Rhydon
Steelix
Alakazam
Medicham
Raikou



D: I’ve tried to use these mons. While they have merit, I personally wouldn’t bring them to a tour game. You can cheese good players with them:
Lapras
Pikachu
Articuno
Salamence
Sceptile
Slaking
Entei
Zangoose

??: Mons I haven’t tried to use enough to rank confidently but may have some use:
Blaziken
Donphan
Dodrio
Espeon
Tauros
Donphan
Chansey
Arcanine
Gligar
Jumpluff