Preps don't bother me. Actually, most of the people at my school that are called preps by other people are really just people that wear stuff like Hollister who get drunk every weekend and gossip a lot really(and I don't know what other schools "define" them as so I can't really say what a prep really is). But yeah, I have some "preppy" friends, basically because I'm nice to pretty much everyone and they're nice to me. I try to be friends with almost everyone. Doesn't always work for me, but most of the time it does.
Most people who are popular at my school are people from a lot of different cliques who are involved in a lot of school activties and extracarricular activities and happen to gain friends from those activities. I guess I could say I'm popular in that sense of having a lot of friends and being involved in a lot of things.