The Pokemon D/P Tier List
In the battling world of pokemon d/p, each and every pokemon is classed within a certain tier. Each tier relates to their usage. These 5 tiers are; Ubers, Overused (Ou), Borderline (Bl), Underused (Uu) and Neverused (Nu).
Ubers:
Ubers are pokemon which were banned from the standard metagame due to the fact they were abnormally overpowered pokemon. Ubers usually consist of extreamly high base stats, a huge godly movepool, and sometimes even a deadly ability.
Mewtwo
Mew
Lugia
Ho-oh
Wobbufett
Kyogre
Groudon
Latios
Latias
Deoxys
Rayquaza
Wynaut
Arceus
Darkrai
Dialga
Palkia
Giratina
Manaphy
Overused (Ou):
The Ou tier consists of pokemon which are used regularly and constantly among the wi-fi battlers.
Azelf
Blissey
Breloom
Bronzong
Cresselia
Dugtrio
Dusknoir
Electivire
Forretress
Garchomp
Gengar
Gliscor
Gyarados
Heatran
Heracross
Hippowdon
Infernape
Jirachi
Jolteon
Lucario
Machamp
Magnezone
Mamoswine
Metagross
Milotic
Ninjask
Porygon-Z
Salamence
Scizor
Skarmory
Slowbro
Snorlax
Staraptor
Starmie
Suicune
Swampert
Togekiss
Tyranitar
Umbreon
Vaporeon
Weavile
Weezing
Yanmega
Zapdos
Borderline (Bl):
The borderline tier consists of pokemon who are Overused, but not used as much as the pokemon in the Overused tier.
Aerodactyl
Alakazam
Ambipom
Arcanine
Articuno
Azumarill
Blaziken
Crobat
Drapion
Empoleon
Entei
Espeon
Exeggutor
Feraligtr
Floatzel
Flygon
Gallade
Gardevoir
Hariyama
Honchcrow
Houndoom
Jynx
Kingdra
Leafeon
Lickilicky
Ludicolo
Magmortar
Marowak
Medicham
Mespirit
Miltank
Mismagius
Moltres
Porygon2
Raikou
Rampardos
Regice
Regigigas
Regirock
Registeel
Rhyperior
Sceptile
Shaymin
Shedninja
Slaking
Slowking
Smeargle
Steelix
Tangrowth
Tauros
Tentacruel
Torterra
Typhlosion
Ursaring
Uxie
Zangoose
Underused:
Consists of pokemon least used in competative battling. (For the exception of NU (Never Used) Pokemon.
Absol
Aggron
Altaria
Ampharos
Arbok
Ariados
Armaldo
Banette
Bastiodon
Beautifly
Beedrill
Bellossom
Bibarel
Blastoise
Buterfree
Cacturne
Camerupt
Carnivine
Castform
Chatot
Cherrim
Chimeco
Clydol
Clefable
Cloyster
Corsola
Cradily
Crawdaunt
Delcatty
Delibird
Dewgong
Ditto
Dodrio
Driflbim
Dunsparce
Dustox
Electrode
Explud
Farfertch'd
Fearow
Flareon
Frosslas
Furret
Gastrodon
Girafarig
Glaceon
Glalie
Golduck
Golem
Gorebyess
Granbull
Grumpig
Hitmonchan
Hitmonlee
Hitmontop
Huntail
Hypno
Illumise
Jumpluff
Kabutops
Kanghaskan
Kecleon
Kingler
Kricketune
Lanturn
Lapras
Ledian
Linoone
Lopunny
Lumineon
Lunatone
Luvdic
Luxray
Macargo
Manectric
Mantine
Masquerain
Mawile
Meganium
Mightyena
Minun
Mothim
Mr.Mime
Muk
Nidoking
Nidoqueen
Ninetails
Noctowl
Octillery
Omastar
Pachirisu
Parasect
Pelipper
Persian
Phione
Pidgeot
Pikachu
Pinsir
Plusle
Politoed
Poliwrath
Primeape
Probopass
Purugly
Quagsire
Qwilfish
Raichu
Rapidash
Raticate
Relicanth
Rotom
Sableye
Sandslash
Scyther
Seaking
Seviper
Sharpedo
Shiftry
Shuckle
Skuntank
Solrock
Spinda
Stantler
Sudowoodo
Sunflora
Swalot
Swellow
Torkoal
Toxicroak
Tropius
Unown
Venomoth
Vespiquen
Victreebel
Vigoroth
Vileplume
Volbeat
Wailord
Walrein
Whiscash
Wigglytuff
Wormadam
Wormadam-G
Wormadam-S
Xatu
Neverused:
The Nu tier consist of Pokemon that are never used in battles.
Ariados
Beautifly
Beedrill
Buterfree
Chatot
Cherrim
Chimeco
Corsola
Delcatty
Delibird
Ditto
Dustox
Farfertch'd
Furret
Girafarig
Glalie
Huntail
Illumise
Kecleon
Lumineon
Luvdic
Macargo
Masquerain
Mawile
Minun
Mothim
Noctowl
Pachirisu
Plusle
Sableye
Seaking
Spinda
Swalot
Tropius
Unown
Volbeat
Whiscash
Wigglytuff
Wormadam
Wormadam-G
Wormadam-S
Anyways, hope the tier list comes in use for you ;D