I personally dislike Butterflix most. It looks really bad in the the cartoon (not so much Musa though), the sequence is lame, the dance is horrible, the under eye makeup looks like a 3 year-old drew under their eyes and the lyrics of the song are pretty mediocre. Plus, the seem REALLY weak in Butterflix, EXCEPT best fairy (Flora). On the plus side, the couture art, fan made art and dolls look beautiful.
I'm also not fond on Enchantix. The outfits don't appeal to me and they don't look as mature as loads of fans make it out to be. Plus, it's overrated, which doesn't effect my opinion 100% (it does a bit though) but it's worth mentioning.