omg no. the only right person in this thread is the person who mentioned Luvdisc and the other who mentioned Sableye (omg worst ability ever). oh and Delibird... except it's not useless when it has a purpose (i mean come on, it's the santa of pokemans-- that's serious business).
azumarill has Huge Power for an ability, doubling its attack AND belly drum. i've swept many teams with it.
kecleon is an awesome special tank who demolishes blissey. people don't know it, but it's a very irritating pokemon with a huge movepool and decent stats.
masqerain can actually pull of choice specs quite well. intimidate is a bonus. weird poke.
chimecho is an awesome support poke with decent defenses and sp atk. i was considering using it until i noticed it had a bell attached to it. i've got enough cowbell =/
chatot has a good sp atk and speed stat. horrible movepool, but good enough to pull off with choice specs.
Nidoking is great. nuff said
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corsola is pretty useless. well, no, cus a lot of other waters depend on it for mirror coat. ok so i'm wrong on that ._.
magcargo! yeah no arguing this thing is bad. although it could sadly and depressingly pull of choice specs -- i'd like to see that.
unown.
farfetch'd... i'd really like to see an evo of it, tho.
sunflora. LOL!! with chloro, it could probably TRY to sweep, but otherwise, it's both ugly and useless.
eh that's all i can think of.