I loved X-2. Yeah, it was too cartoonish, and some of the story elements were... questionable, but overall I thought the plotting and characters were good. And if they were rather heavy-handed with the girlishness (changing outfits to make your powers stronger, oy) of it, the battle mechanics were fun -- complex enough to keep it interesting, and not so complex that it defied understanding.

I think the negative feelings can mostly be summed up with "there's icky girl stuff in my video games." OMG, an RPG that passes the Bechdel test?! Cannot be borne.