Neither. Both have no Pros.

WOW is addicting and when kids become in there teens they'll being playing til 3 am and never take showers and just play that all the time

MySpace Rape only happens to stupid adults who don't care about their children. If you are suggesting that you have kids who want to be on one or the other, then if you let them do MySpace, demand they give you their password and if they don't then thats it no more myspace!