Wario's just silly-- it doesn't seem right. Jiggz is stupid ridiculous too, from what I could tell. You can pretty much turn anything into a combo that ends in a rest that kills, or an unstoppable F-air wall of pain.
I don't think I really saw the whole cast in depth, though, so... blah.
I watched people play Pit and Fox and couldn't really figure out what major changes they got.
I like Zelda. She's my favorite, even above my main, Ike. I think her air dodge and spot dodge hurting people may be a bit much, but.. I think without it, it's probably not enough. Ah well. Just keep her as is. =D