Machen, Johansson, Folley, H.Copper, Chuvalo, Patterson, Cl Williams, Ali, D.Jones, Terrell, Mildenberger, Bonavena, Ellis, Frazier, Quarry, Martin, Peralta, Foreman, Bugner, Norton, Lyle, Middleton, Shavers, Young, Holmes, Coetzee, L.Sinks, Ocasio, Tate, Weaver, Cooney, Dokes, Berbick, Page, Snipes, Thomas, Witherspoon, Tubbs, M.Spinks, Carl Williams, Bruno, J.Smith, Tyson, Douglas, Ruddock, Damiani, Tucker, Mercer, Bowe, Holyfield, Moorer, Lewis, Morrison, McCall, Akinwande, Seldon, Golota, Tua, Briggs, beabuchi, Byrd, V.Klitschko, Maskaev, J.Ruiz, W.Klitschko, Oquendo, Toney, Brewster, McCline, Barrett, Sanders, Peter, Valuev, Lyakhovich, Chagaev, Ibragimov, Thompson, Povetkin, Chambers, Haye, Arreola, Adamek, Pulev, Fury, Parker,Wilder, A.Ruiz, Ortiz, Jennings, Joshua, Stivene, Whyte, Cleroux, Biggs, Kirk Johnson, Bobick, Norris, Hunter Snr. DeJohn. I think that's a 100 plus Moore and Harold Johnson from thr pre 1956 era. I'm sure I've missed some plus I have near misses like Spencer, Helenius, Grant, Schulz and Roy Jones I didn't consider based on one fight. I intend on splitting them into groups of 20 eg top twenty, next twenty etc. Input, criticism needed and welcomed.
Ok Tier 1; Johansson, Patterson, Liston, Ali, Frazier, Foreman, Norton, Young, Holmes, Witherspoon, Tyson, Bowe, Holyfield, Lewis, V.Klitschko, W.Klitschko, Povetkin, Fury, Wilder, Joshua
21-40; Machen Folley Terrell Bonavena Ellis Quarry Lyle Thomas Tubbs M.Spinks Douglas Ruddock Tucker Ibeahuchi Byrd Moorer Chagaev Shavers Rahman Weaver lots of near misses!
41-60; Tate Cooney Dokes Berbick Smith Mercer McCall Tua Coetzee Bruno A. Ruiz Ibragimov Morrison Golota L.Spinks Valuev Pulev J.Ruiz Oquendo carl Williams
61-80; Haye Parker Thompson Berbick Snipes Damiani Clev. Williams Briggs McCline Toney Bugner Chuvalo Adamek H.Cooper Chalmers Peter Martin Ortiz Middleton Brewster
I think Byrd should be tier 1. He was better than Povetkin, Witherspoon and Frazier. About even with Holyfield.
Frazier was Chisora level, just tougher. Ali was a nice style match-up for him. Holyfield achieved more than Byrd, but Byrd was the better pure boxer and won the head to head. I rate them even.