Clean is best. We don't want to know how many times you have scored in the past week. It is totally crass and above all, dirty. Going through the litany of all your conquests might make you feel all manly, but for girls, it is laughable. Acquire some sophistication.
Guys have no idea how impressive it is to a girl when they can speak in complete sentences.
Or, if a girl is very lucky, a guy can actually hold a conversation on something important. Believe it or not, most people want to be treated as people and not just as a piece of ass. All girls, even the hardasses, are suckers for romance. Flowers and emotion will get you places that have been previously unexplored by the greater male population. It is incredibly sexy when men can use words with more than three syllables in them.