Vitali Kiltschko - Hasn't lost since Lewis (Lewis quickly retires in fear of a rematch)
Kostya Tszyu - fought 16 world champions beating one in only his 4th fight)
Wladimr Klitschko- Has a couple of bad losses, but doesn't look like losing currently.
Joe Calzaghe- Overrated
Darius Michalczewski-Underrated