I don't, strictly speaking, object to clones. I just wish they weren't quite so alike. I would be perfectly happy if they pulled a Luigi with Falco. Keep most of his animations, but change a few of his attacks to give him more personality.
I do dislike certain clones on principle. Ganondorf should not have been a clone of Captain Falcon. I mean, seriously, what the **** is that shit? Ganondorf actually has his own movies in OoT and TP. He's a ****ing sorceror guys, give him a moveset that reflects that, don't just repurpose Falcon's moves.
On another topic entirely, I can't say I'm impressed by what I've seen of Wario's moves so far, but without actually playing him myself, can't make a final judgement one way or the other. But preliminary judgement is he's crap.