http://www.cbr.com/bad-90s-x-men-characters/
Don't get me wrong, the nineties are strong on this list. It is Very 90's!
But, most of these characters are not bad. They are not popular with Marvels pro 70's anti 90's writers, and Marvel does want you to forget them.
But better than Stacy-X, All of Grant Morrison designed characters, the Bendis characters, the Fraction characters, the Guggenheim Characters, they are better than all of them. In my opinion the only post 2000 character that hold a candle are the Academy X kids.