Excellent idea IMO, originally created by @Fergy , when a great heavyweight is matched up with every fighters who held the title before him. Today, we will talk about the prime 1992 Riddick Bowe, who at 6′5″ with an 81 inch reach, weighed 235, was an excellent fundamental boxer, with "not so" great defense, but would have been a stern test for any fighter who ever lived. So do you think he would have fared well against these guys, do you think he beats them all or lose to most of them? Jack Dempsey Gene Tunney Max Schmeling Jack Sharkey Primo Carnera Max Baer James J Braddock Joe Louis Ezzard Charles Jersey Joe Walcott Rocky marciano Floyd Patterson Ingomar Johansson Sonny Liston Muhammad Ali Ernie terrell Jimmy Ellis Joe Frazier George Foreman Leon Spinks Ken Norton Larry Holmes John Tate Mike Weaver Gerrie Coetzee Greg Page Tim Witherspoon James Smith Trevor berbick Michael Spinks Tony Tucker Mike Tyson Tokyo james Buster Douglas. Edit: the Holyfield who won the undisputed title, 1982 Dokes, Prime tubbs and Thomas are now in that list.