Gary, puting Marciano 4th is ridiculous. No ones ever shown me a reasonable argument for anyone beating the guy. Outbox him? Everyone he ever defeated could outbox him. Knock him out? Joe Louis, probably the #2 heavyweight of all time, couldn't do it, and Rocky, God love'em, was hittable...so what he was 37 at the time, power is the last thing a heavy weight loses. We're talking a freak of nature with hands and head of iron here. Putting him in the ring with other humans was almost unfair.
Bottom ten for Dempsey fits? Putting anyone who ain't named Marciano, Louis, or Tunney ahead of Dempsey is crazy.
Yeah, we can go around and around about the merits of Marciano vrs. Louis as opposed to Johnson vrs. Jeffries, but you've got to admit that Louis had alot more fight left in him than Jeffries did. I'd put the Louis that Rocky defeated against most other heavyweights in history. Like I say, there ain't no set half-life. I mean, how young was Tyson and already washed up?