Ali -1965-67 is almost unbeatable, he fought often and toyed with opponents, his demolition of Cleveland Williams is text book Ali.

Foreman 1973 when he fought Frazier is an unstoppable force never before seen in the Heavyweight division. Remember big George took out a previously unbeaten Joe Frazier with such devastation that many scribes actually feared for Ali's life.

Larry Holmes is an often under rated HW champion, a superb boxer and although he had some close calls with both Norton and Shavers (how did he get up from that right hand) Larry Holmes in his prime beats most HW and takes Lewis to school!