Muk by FAR. I've never liked Jiggs. I'll admit, when it first appeared in the anime and started drawing on everyone's faces, I did find that kind of funny, but other then that I've always disliked it. Stupid design, stupid voice, it's annoyng as hell in Smash Bros, it's STILL in Smash Bros...ugh. As for Wiggs, I honestly don't know too much about him. I've hardly ever used it in games or seen it in the show, but as far as I'm concerned, it's just a slightly bigger Jigglypuff.