i kind of already answered this, so I'll copy and past because i'm lazy :)

I like girls who are honest and trustworthy, have a sense of humor, intelligent, accepting and open-minded, understanding not only towards me, but towards others as well. I like girls with a drive to do something with their lives, not just settle for what's easiest. That can be anything they are passionate about, helping people, music, nursing, coming up with a car that runs on water, whatever it is, I don't care as long as they love what they are doing and there are good intentions behind it. I like girls who have lived through hardships, or has overcome some type of difficulty in there lives and has become a stronger person because of it. A girl who can appreciate the beauty and hypocrisy that this world holds. Someone who isn't afraid to stand up for what they believe in.
As far as looks go, I'm normally into girls who have dark hair, and are somewhat feminine. Actually lately, I've been more into sporty girls. But if I could have a girl who looked exactly like Olivia Wilde, I wouldn't complain ;D