Believe it or not, alot of Brawl animations aren't as horrible as you guys think (in fact, I much prefer many if not all of the Brawl animations to Melee animations despite the Melee gameplay being 100x better than Brawl's), and actually most of them, if they were changed significantly, give the character more personality. Falco's whirlwind slashes don't look pragmatic in real combat or look particularly hard hitting, but they're needlessly flashy, graceful, and showoff-ish, matching Falco's personality in the games. By contrast, Fox's moves seem like moves that a professional trained mercenary might perform...if he was in a video game of course, matching his more serious personality (except for the spin kick...that looks more like something Falco would do, but hey, why not give Falco the spin kick fsmash and give Fox the Melee roundhouse!?). And of course, when you think about it, Ganon can never run like Captain Falcon with all that bulky armor on. While awesome, it looks more ill-fitting than the Old Manonjog.
I guess all I'm trying to say is that while we are trying to make Melee, this is supposed to be Melee 2.0, not Melee 1.0. If it doesn't directly benefit the character's Melee game or is a purely aesthetic change that will not change how the move functions at all (I'm looking at you red lasers), it's probably a waste of time if not a regression (since most times it will involve needlessly re-cloning a character).