Brawl is pretty goddamn balanced. The polar opposites are very different, but due to how the game works, most of the cast is viable imo.
EDIT: You guys know how strong our uair is. That **** can kill MK at like 100% or below. Any tips on landing the 2nd hit? The first hit contains the huge windbox to take them out before the 2nd hit and the 1st hit doesn't really combo into the 2nd at higher %. Of course there is stuff like reading an airdodge and uairing then, but I consider that kinda risky, I'd rather just have the free 18% from nair. Tips anyone?