Male PC - He actually looks pretty cool! The hair is wild, but I think that's a good thing. Makes him unique!
Female PC - Very cutesy girl. I'd say she has the cutest design of all the female PCs.
Rival - Very cool lookin' dude. His face seems to say "Bring it on." I like the idea of having a rival that has that kind of "Let's do this!" attitude!
Gym Leaders - The guy is okay, but I'm likin' the rocker chick! Maybe it's the metalhead in me, but girl + guitar + Pokemon battle = awesome!
Prof/Doc - He has a name, but I can't remember it. Anyway, looks good. Can't decide what I think about him though, his facial expression makes him difficult to figure out, because he doesn't look as friendly as most of the other Profs. do, but he doesn't seem definitely evil either...hmm....
Overall, the characters are great! I was expecting new PCs because of B2/W2 being sequels, but it's nice to see some other new characters too! The PCs look younger than the ones from B/W, but it doesn't bother me. I don't think they're too similar to Hilbert and Hilda. And their outfits are unique as well, though I doubt that actually mean anything about the games.