I think Most People will Mention The Old School Greats. He might not have the best but my Shout is Hoyfield. He beat so many Big Names and Champs its Amazing. Qawi Tyson Moorer Bowe Douglas Foreman Holmes Rahman Ruiz Mercer De Leon
SRL Has 4 All Time Greats with Hagler , Duran ,Benitez and Hearns. Its abit thin after that but still Amazing.
Yeah some old timer like SRR or Archie Moore Ask the Classic forum - tho i really doubt its possible to have a definitive answer
Alexis Arguello went 16-3 in world title fights, fought 14 current, or future world champions, some of them Hall of Fame members and all time greats.
Muhammad Ali Archie Moore Sonny Liston x2 Floyd Patterson x2 Joe Frazier x2 Ken Norton x2 George Foreman ect.. & that's not including the Ernie Shavers, Leon Spinks, Chuvalo's of the world...
Holyfield: Qawi Tyson Moorer Bowe Douglas Foreman Holmes Rahman Ruiz Mercer De Leon Lewis: Ruddock Briggs Mavrovic Mercer McCall (1/1) Rahman (1/1) Bruno Golota Morrison Botha Tua Klitschko Holyfield Tyson I think Lewis' resume is clearly better. But I'm not adverse to someone trying to convince me otherwise.