Probably Storm. For me it's Storm, Kamala Khan, Squirrel Girl, She-Hulk, Rogue, Shocket Raccoon, and Captain Sales (or however it's spelled). Dark-skinned and anthro women are guaranteed to fill my top picks.
HOW DO I CHOOSE. I'm not even a huge X-Men fan but Magik is cute as hell, same with Jubilee. She-Hulk is a great pick, too. Also, Scream. Gotta love me some women who not only *could* kill me, but probably *would.* But most of my serious favorites are more obscure.