1. Primo Carnera 2. Jess Willard 3. James Jeffries 4. Trevor Berbick 5. Greg Page 6. Mike Weaver 7. Raul Marquez 8. Yori Boy Campas 9. Fernando Vargas 10. Bob Foster
At HW, it has to be Leon Spinks. Leon was an amazing natural athlete with good power, speed, heart and stamina at his very best, but he was easily the least skilled member of the 1976 US Olympic Boxing Squad (ironic when considering his brother). His win over Ali was by SD behind the strength of work rate and hustle (along with a smart plan by Sam Solomon to exploit Ali's rope a dope by splitting the guard with uppercuts and hammering the biceps, which Leon obediently carried out to the letter). He drew against LeDoux and Animal Lopez in matches many believed he lost. (If Eddie Lopez had not lost a point in round five with a flagrantly deliberate retaliatory butt in response to a clearly accidental one, then Leon would have lost.) Leon Spinks-Alfio Righetti has been on youtube, and many who saw it then and in the years since think the previously undefeated Italian won the match which got Leon to Ali, significant, because on paper this is probably Leon's best decision win after Ali I. 36 year old veteran Jesse Burnett was flagrantly robbed of the 12 round decision which got Leon his CW Title shot at Qawi (fortunately, Jesse was awarded for his performance anyway with an immediate CW shot of his own at Qawi counterpart Sugar DeLeon). When you look at Neon Leon's record, he never won a clear cut decision over any reputable opponent on the basis of skill. Can't buy Primo as a candidate for this thread. He had too many decision wins against too many good opponents. Jim Maloney, Uzcudun 2X, King Levinski 2X, McCorkindale, Loughran, Campolo, Ford Smith, Lasky and Birkie were among those decisions, and it can be argued that most if not all of them were better than any decision wins Leon legitimately garnered against anybody aside from Ali. Willard isn't in the mix either, I don't think. Got the best of identically sized Carl Morris 8-1-1 in rounds, shut out Frank Moran over ten on film, got the best of Pelkey over ten, and the NY Times called his match with McCarty in favor of Jess. Again, all these results surpass anything Leon did over the distance aside from Ali I. Like Carnera, Jess had a serviceable jab and a smashing uppercut inside. (In fact, a case can be made that Willard was the best infighter of all the tall heavyweight champions until Bowe, on the strength of that right uppercut.)