It would be nice if C-KohaMech could do more than like 3000 damage lol, things like that are obnoxious.
As for the sprites, people bitch about Melty's sprites a lot, but you can't say that the animation isn't fantastic. If we traded for higher quality sprites with less animation, I'd much prefer what we have right now. I think even if they're "a little jagged" or whatever, they're fine.
That said, I do love 3s' sprites and think if we could have 3s quality sprites that would be nice.