I think you can make a case for either Lewis or Ali, depending on your own criteria for what makes the best resume, Ali for having the best names on there, and the most wins against great fighters Lennox Lewis for for having beaten more good fighters and the more consistently strong opponents
I think Arreola is a much better win than one against either Valuev or a shot Ruiz myself. Of course Haye has a great chance to put this resume argument to bed once and for all come July 2nd.
Archie moore Henry cooper 2x Sonny liston 2x Floyd patterson 2x Jerry Quarry2x Oscar Bonaneva Frazier 3x Ken Norton 3x Big George Leon Spinks And I still left out guys like Lyle, Shavers, Ellis, Bugner, Chuvalo, Terrell, Mildenberger and so on and so on. His resume is like a Who Is Who of heavyweight boxing
I don't know why you've included Henry Cooper in the first bracket, the guy was a nothing fighter and wouldn't make the top 20 today. W Klitschkp V Klitschko Haye Adamek Chambers Helenius Povetkin Chagaev Solis Juan Carlos Gomez Peter Boytsov Thompson Arreola Pulev Dimitrenko Mike Perez Ustinov Liakhovich No chance he wins against this crop, tbh I think I could find another 30 in todays era he would struggle against.
at the people saying anything besides Louis and Ali though, there's no comparison. Both guys were arguably the best fighter in three decades of HW boxing, and dominant in the majority of that, there's no comparison really to any other fighter.