1. Deontay Wilder- Power is just too scary and menacing
2. Mike Tyson- could not stand the speed and intensity
3. George Foreman- The one that shut down Frazier twice
4. Ray Mercer- man that fucker was mean. lol... what he did to Morrison and Pegues is terrifying
5. David Tua- Knowing you could be decapitated at any moment in the fight is enough for me.