Magneto's my favorite X-Men mutant. Not Wolverine, the wildly popular pick amongst fanboys. I've always felt Logan's powers are somewhat limited. Those talons are tame, if not lame. Not Cyclops, either, with his out-of-charge optic beams. And certainly not the paraplegic Professor X.
I like Magneto because the guy has a great fashion sense, can generate and control electromagnetic forces, or maybe it was just Ian McKellen who made him so cool.