Quote Originally Posted by brocktonblockbust View Post
Quote Originally Posted by Master View Post
The definitive list and in order.

Muhammad Ali
Joe Louis
Larry Holmes
Mike Tyson
Lennox Lewis
George Foreman
Joe Frazier
Evander Holyfield
Wladimir Klitschko
Jack Johnson
Hey, W.W.O., ....... Frazier and NOT Marciano? Rocky held the title from 1952 to 1956 and defended it 6 times (5 KOs, 1 decision). Frazier held it less time and defended it less times as well.

WWO= Wolverhamptom Wild One
Frazier had more title defences against better fighters.