text: in your opinion who was the greatest heavyweight champion of all time? joe louis (fought and defended the title more than anyone else) rocky marciano (only fighter to remain undefeated though he passed away in his prime) muhammed ali (great fighter and possibly but remember all the fights with frazier) mike tyson (youngest undisputed heavyweight chamion of the world and the last bixer to have all the belts unified) evander holyfield (only person to have held a piece of the heavyweight crown four different times) joe frazier (great champ after ali got stripped and wars with ali are classic) these are just a few i give you a scene from "coming to america" starring eddie murphy...  "pound for pound, joe louis the greatest fighter who ever lived.  he's badder than cacius clay, he's badder than sugar ray, he's badder than... who's that new boy?  mike tyson?  looks like a bulldog!  he's badder than him too!  he could whip mike tyson's ***, he could whip all there ***!!"  "what about rocky marciano?"  "oh there they go. there they go, every time i start talkin 'bout boxing, a white man got to pull rocky marciano out their ***. that's their one, that's their one. rocky marciano. rocky marciano. let me tell you something once and for all. rocky marciano was good, but compared to joe louis, rocky marciano ain't ****!"  "he beat joe louis' ***..."  "............ joe louis was 75 years old when they fought!  joe louis came out of retirement to fight rocky marciano, the man was 78 years old.  joe louis lied about his age.  he lied about his age all the time.  one time, frank sinatra was in this chair here and i asked him 'hey frank, you know joe louis.  how old is joe louis?'  you know what he told me?  'joe louis' is 137 years old'!  137 years old!!"  easily clay/ali