Introduction
Like in every game, B/W has some pokémon that are worth catching, and some that aren't. I'm going to show the factors that contribute for a pokémon to be worth catching or not, and then, list they in tiers.
Factors
Avaliability: if the pokemon comes early or late. Pokémon that come sooner will often have an advantage over those who come later, since the former will contribute more to the team.
Extremely Early = 1st badge and before
Very Early = Between the 1st badge and the 2nd badge
Early = Between the 2nd badge and the 3rd badge
Slightly Early = Between the 3rd badge and the 4th badge
Mid game = Between the 4th badge and the 5th badge
Slightly Late = Between the 5th badge and the 6th badge
Late = Between the 6th badge and the 7th badge
Very late = Between the 7th badge and the 8th badge
Extremely late = After the 8th badge
Useless = After the E4
Utility: HM Slaves or Pokémon that help with minor functions, such as specific Gym battles also help the player significantly, such as using Yanappu to beat the 1st gym or using dokkora to beat the 2nd.
Stats: The power of pokémon is a crucial factor. A pokémon with 115 base attack has more chances of helping beating the game than a pokémon with 85, for instance.
Efficiency: Basically, if a pokémon requires too much training. For instance, one of the reasons why bagon is a low tier pokémon in-game because it's grow rate is really high, meaning that it requires too much grinding.
The list
The tiers are the following:
Platinum tier: Pokémon that are godly in the game and have no flaws
Gold tier: Very good and useful pokémon, but not perfect
Silver rank: Good pokémon, but not so useful
Bronze Rank: Pokémon that have too much flaws to be good
Durr Rank: Useless pokémon.
Platinum tier
Oshawott - Comes extremely early (starter), very good level up movepool, very good stats.
Tepig - Comes extremely early (starter), good level up movepool, very good TM movepool, good stats.
Darumakka - Comes early, very powerful stats, awesome level up movepool.
Gold tier
Yanapu - Comes extremely early, useful to beat 1st gym, but average stats and average movepool.
Baopu - Comes extremely early, useful to beat 1st gym, average stats.
Hyiapu - Comes extremely early, useful to beat 1st gym, average stats.
Mamepato - Comes very early, useful to learn fly, but bellow average stats and movepool.
Dokkora - Comes very early, useful to beat the 2nd gym. Roobushin has powerful stats, but requires trading.
Otamaro - Comes very early, useful to learn surf, good movepool, average stats.
Aaken - Comes mid-game, very powerful stats, good movepool, but hard to evolve and bad trait
Shimama - Comes very early, useful to beat the 4th gym, good stats, average movepool.
Churine - Comes very early (exclusive to White, but there's a in-game trade in Black), good stats, good movepool (doredia learns butterfly dance).
Meguroco - Comes early, very good movepool, good stats
Silver Rank
Snivy - Comes extremely early (starter), but bad stats and bad movepool
Yooteri - Comes extremely early, but average stats and average movepool
Choroneko - Comes extremely early, average stats and average movepool
Muuna - Comes early, Good stats
Fushide - comes very early, average stats
Dangoro - Comes early, but requires trading to become Gigaiasu and have very good stats
Mogurew - Comes early, very good stats, very good movepool, but hard to find
Dageki - Comes very early, good stats but very rare
Sewadle - Comes very early, good stats, but hard to evolve
Zuruggu - Comes early, average movepool, average stats
Shinbora - Comes mid-game, awesome movepool, good stats, but very hard to find
Yuniran - Comes slightly early, good stats, average movepool
Shikijika - Good stats, very good movepool, but comes slightly late and takes long to get a physical grass attack
Bachuru - Good stats, good movepool, but comes slightly late
Hitomoshi - Very powerful stats, good movepool, but comes late and hard to evolve
Krimgan - Good stats, very good movepool, but comes late
Bronze Rank
Minezumi - Comes extremely early, but bad stats and bad movepool
Koromori - Comes early, but very bad stats
Tabunne - Comes early, but below average stats and hard to find
Nageki - Comes early and has good stats, but very hard to find
Monmen - Comes early in black, (requires in-game trade in white), but bad movepool and below average stats.
Basurao - Average stats, but comes late
Marakachi - Average stats, but very hard to find
Ishizumai - Average stats, average movepool
Desumasu - Average stats, average movepool
Purotooga - Useful to surf, good movepool (shell smash), but very outclassed by aaken
Yabakuron - Comes slightly early, but below average stats
Minccino - Comes slightly early, but below average stats
Gothimu - Above average stats, but comes late
Koaruhie - Useful to fly, but below average stats and comes slightly late and hard to find
Tesshiido - Good stats, but hard to evolve and comes late
Klink - Good stats, good movepool (learns gear change), but very hard to evolve and comes late
Riguree - Above average stats, but comes late
Kibago - Very powerful stats, but comes late and very hard to evolve
Kojofu - Very good stats, good movepool, but comes very late and hard to evolve
Gobitto - Good stats and good movepool, but comes very late and hard to evolve
Komatana - Good stats, but comes very late.
Baffuron - Very good stats, but comes extremely late.
Washibon - Very good stats and useful to fly, but comes extremely late and hard to evolve
DURR Rank
Zorua: Very good stats and very good movepool, but almost impossible to have
Vanipeti: Average stats, but comes late and requires winter
Emonga: Bellow average stats and comes late
Kapurumo: Very powerful stats, but bad movepool, comes late and requires trading to evolve
Tamagetake: Bellow average stats and comes late
Pururiru: Bellow average stats and comes late
Mamanbou: Bellow average stats and comes late
Shibishirasu: Horrible stats, horrible movepool, very hard to find and very hard to evolve, but has no weakness and if evolves gets powerful stats and awesome movepool
Kumasyun: Good stats, but comes late and requires winter
Furijio: Average stats, but comes late and hard to find
Chobomaki: Very good stats and good movepool, but comes very late late and requires trading to evolve
Monozu: Sazandora has Very powerful stats, very powerful movepool, is useful to fly and surf, but comes extremely late and it's extremely hard to evolve.
Like in every game, B/W has some pokémon that are worth catching, and some that aren't. I'm going to show the factors that contribute for a pokémon to be worth catching or not, and then, list they in tiers.
Factors
Avaliability: if the pokemon comes early or late. Pokémon that come sooner will often have an advantage over those who come later, since the former will contribute more to the team.
Extremely Early = 1st badge and before
Very Early = Between the 1st badge and the 2nd badge
Early = Between the 2nd badge and the 3rd badge
Slightly Early = Between the 3rd badge and the 4th badge
Mid game = Between the 4th badge and the 5th badge
Slightly Late = Between the 5th badge and the 6th badge
Late = Between the 6th badge and the 7th badge
Very late = Between the 7th badge and the 8th badge
Extremely late = After the 8th badge
Useless = After the E4
Utility: HM Slaves or Pokémon that help with minor functions, such as specific Gym battles also help the player significantly, such as using Yanappu to beat the 1st gym or using dokkora to beat the 2nd.
Stats: The power of pokémon is a crucial factor. A pokémon with 115 base attack has more chances of helping beating the game than a pokémon with 85, for instance.
Efficiency: Basically, if a pokémon requires too much training. For instance, one of the reasons why bagon is a low tier pokémon in-game because it's grow rate is really high, meaning that it requires too much grinding.
The list
The tiers are the following:
Platinum tier: Pokémon that are godly in the game and have no flaws
Gold tier: Very good and useful pokémon, but not perfect
Silver rank: Good pokémon, but not so useful
Bronze Rank: Pokémon that have too much flaws to be good
Durr Rank: Useless pokémon.
Platinum tier
Oshawott - Comes extremely early (starter), very good level up movepool, very good stats.
Tepig - Comes extremely early (starter), good level up movepool, very good TM movepool, good stats.
Darumakka - Comes early, very powerful stats, awesome level up movepool.
Gold tier
Yanapu - Comes extremely early, useful to beat 1st gym, but average stats and average movepool.
Baopu - Comes extremely early, useful to beat 1st gym, average stats.
Hyiapu - Comes extremely early, useful to beat 1st gym, average stats.
Mamepato - Comes very early, useful to learn fly, but bellow average stats and movepool.
Dokkora - Comes very early, useful to beat the 2nd gym. Roobushin has powerful stats, but requires trading.
Otamaro - Comes very early, useful to learn surf, good movepool, average stats.
Aaken - Comes mid-game, very powerful stats, good movepool, but hard to evolve and bad trait
Shimama - Comes very early, useful to beat the 4th gym, good stats, average movepool.
Churine - Comes very early (exclusive to White, but there's a in-game trade in Black), good stats, good movepool (doredia learns butterfly dance).
Meguroco - Comes early, very good movepool, good stats
Silver Rank
Snivy - Comes extremely early (starter), but bad stats and bad movepool
Yooteri - Comes extremely early, but average stats and average movepool
Choroneko - Comes extremely early, average stats and average movepool
Muuna - Comes early, Good stats
Fushide - comes very early, average stats
Dangoro - Comes early, but requires trading to become Gigaiasu and have very good stats
Mogurew - Comes early, very good stats, very good movepool, but hard to find
Dageki - Comes very early, good stats but very rare
Sewadle - Comes very early, good stats, but hard to evolve
Zuruggu - Comes early, average movepool, average stats
Shinbora - Comes mid-game, awesome movepool, good stats, but very hard to find
Yuniran - Comes slightly early, good stats, average movepool
Shikijika - Good stats, very good movepool, but comes slightly late and takes long to get a physical grass attack
Bachuru - Good stats, good movepool, but comes slightly late
Hitomoshi - Very powerful stats, good movepool, but comes late and hard to evolve
Krimgan - Good stats, very good movepool, but comes late
Bronze Rank
Minezumi - Comes extremely early, but bad stats and bad movepool
Koromori - Comes early, but very bad stats
Tabunne - Comes early, but below average stats and hard to find
Nageki - Comes early and has good stats, but very hard to find
Monmen - Comes early in black, (requires in-game trade in white), but bad movepool and below average stats.
Basurao - Average stats, but comes late
Marakachi - Average stats, but very hard to find
Ishizumai - Average stats, average movepool
Desumasu - Average stats, average movepool
Purotooga - Useful to surf, good movepool (shell smash), but very outclassed by aaken
Yabakuron - Comes slightly early, but below average stats
Minccino - Comes slightly early, but below average stats
Gothimu - Above average stats, but comes late
Koaruhie - Useful to fly, but below average stats and comes slightly late and hard to find
Tesshiido - Good stats, but hard to evolve and comes late
Klink - Good stats, good movepool (learns gear change), but very hard to evolve and comes late
Riguree - Above average stats, but comes late
Kibago - Very powerful stats, but comes late and very hard to evolve
Kojofu - Very good stats, good movepool, but comes very late and hard to evolve
Gobitto - Good stats and good movepool, but comes very late and hard to evolve
Komatana - Good stats, but comes very late.
Baffuron - Very good stats, but comes extremely late.
Washibon - Very good stats and useful to fly, but comes extremely late and hard to evolve
DURR Rank
Zorua: Very good stats and very good movepool, but almost impossible to have
Vanipeti: Average stats, but comes late and requires winter
Emonga: Bellow average stats and comes late
Kapurumo: Very powerful stats, but bad movepool, comes late and requires trading to evolve
Tamagetake: Bellow average stats and comes late
Pururiru: Bellow average stats and comes late
Mamanbou: Bellow average stats and comes late
Shibishirasu: Horrible stats, horrible movepool, very hard to find and very hard to evolve, but has no weakness and if evolves gets powerful stats and awesome movepool
Kumasyun: Good stats, but comes late and requires winter
Furijio: Average stats, but comes late and hard to find
Chobomaki: Very good stats and good movepool, but comes very late late and requires trading to evolve
Monozu: Sazandora has Very powerful stats, very powerful movepool, is useful to fly and surf, but comes extremely late and it's extremely hard to evolve.