Ah, so we're taking this thread seriously now? Very well. 

Like so many people here, I'm a sucker for intelligence... but it's a prerequisite, not something that I'm specifically attracted to. Anyone significantly dumber than I am -- that's just not going to work. I find women who are a lot more intelligent than I am intimidating. I'm comfortable with my own mental acuity but I'm well aware there are people a lot sharper than me out there and it scares me. Go away. 

What I really like are women capable of great compassion and empathy. Humor is important, of course, and not taking yourself too seriously is great, but nothing endears me to a person more than making up for my own emotional shortcomings.