Magneto
Well, I don’t know which mutant I’d be, but I’d want to hang out with Shadowcat… and, you know… do stuff… cuz she’s cute… and, ummmm… yeah.
<-- lame dude with a crush on a comic character
I wanted to be Warlock. He was so superbad, he defeated Impossible Man himself.
I have always liked Beast meself…
Years ago, he didn’t have blue fur, but he has always had great feet.
Angel (Archangel) wouldn’t work- his wings are too small.
Sci-fi worldbuilding at
http://www.orionsarm.com/main.html
Colossus here. Organic steel body. Incredibly strong. Incredibly tough. Oh yeah baby.
And here was I thinking that I was the only one with a major crush on Kitty. 
So, if I was an X-Man, could I be Doug Ramesy (aka Cypher) and romance Kitty? (Rather than be dead). 
Definitely Xavier’s power, as long as I don’t have to be in a wheelchair.
By reading and controlling minds, I would RULE THE WORLD within a year (quietly and secretly, behind the scenes, of course!)
You Wolverines and other butt-kicking mutants will find very lucrative positions available on my personal security force…
Your “job interview” is to bring me the heads of all the other telepaths!
And I’ll want Forge to build me a device that will render me immortal. Name your price, my friend!