As sex is very much in the mind I find that "model" women usually turn out to be less than optimal - they are usually a) expensive and b) up themselves (because they know how good they look). Much prefer average GND to good looking girls who are fun to be with and know how to have a good time.
Fun, witty, and adventurous trump overly pretty any day for me. I also prefer women who can look good with hardly any makeup. I've had a few apologise because they haven't applied any due to being in a rush - apology waved aside because I find their natural beauty a turn on