Oooooooooh me LOVE. I'm such a nerd when it comes to this stuff too
I do like Storm, but I don't think the movies did her character much justice. She's much better in the comics. My all time fav is Emma Frost though:
She is a awesomes telepath/telekinetic and she has a diamond skin
Well...depending on which version/saga of X-Men you read. Ok I will stop now before everyone makes fun of me.