Strong women; women who stand up for themselves or others.
Long winded stuff about how I'm crazy.
I was a pretty intimidating figure through most of middle/high school. People just didn't get in my face, they wouldn't argue with me, they didn't want to see me mad, all that jazz. (So much back story here that doesn't really matter in this discussion.)
In one of my classes freshman year I was giving one of my classmates (a friend) kind of a hard time - a silly exercise in our drama class, I wasn't that much of an asshole.
One of her other friends who didn't know me said, "Mike, shut up." I was really taken aback and kind of turned on. Nobody ever did this, it just didn't happen. It was really hard to flirt with her since she thought I was just a jerk - this being our first interaction - but the thought of a girl that wouldn't just back down from things, wasn't afraid to argue or be mean to me was exciting.
I eventually asked her out and we dated for a good six years.
My current girlfriend is pretty similar in regard to this type of thing and I love her for it.
End long winded crazy talk.
I'm also a sucker for nice long hair - down to around the waist or so. It's incredibly sexy when they're above you and it's just hanging down on you or when it's spread out across the bed while they're on their back.