Super villains would beat super heroes in a fight if all were involved at once

I believe that if all super villains and all super heroes were to have a fight, the super villains would win the fight. Firstly this is my first debate so take it easy on me :) Secondly i would like to define super villains as all comic/ anime related villains including all horror movie villains thus any antagonist of any Film or literary content including comics as previously stated....