Tricky question. Difficult to say off top of my head.
Brad Pitt is good looking (probably a rather generic answer though)
Pierce Brosnan is also very handsome. Although these two are significantly older than me.
Haha, and I suppose Prince Harry, since he's a charming person and not unattractive either.
Also it'd be unique to say you slept with a Prince.
It's still kinda weird though to choose any of them. Never thought of them for their body, which is fairly important if you're going to have love with someone.