Open minded, independent, creative, culturally compatible (i am not a conformist, and i have many interests).
Interested in a relationship on equal grounds, and with little (or no) taboos.
When i was younger i preferred girls with a nice breast and childish butt/legs. I had affairs and loved girls with different phisical features, so now i know that what's important is that she must touch my heart, and arouse my curiosity and desire.
Real pleasure comes first from the brain, and then goes physical, in a mutual understanding.
Describing it in a few words is not easy. Just a few hints: discovery, mistery, equality, breaking a few rules, same pleasure in receiving and giving.