Heavy
Muhammad Ali
Joe Louis
Rocky Marciano

Cruiser
Evander Holyfield
Dwight Muhammad Qawi
Carlos De Leon

Light Heavy
Archie Moore
Roy Jones Jr.
Ezzard Charles

Super Middle
Chris Eubank
Joe Calzaghe
Nigel Benn

Middle
Ray Robinson
Carlos Monzon
Marvin Hagler


Light Middle
Terry Norris
Freddie Little
Oscar De La Hoya (Half ass pick I know)

Welter
Ray Leonard
Pernell Whitaker
Kid Gavilian

Light Welter
Julio Cesar Chavez
Aaron Pryor
Nicolino Locche

Light
Roberto Duran
Benny Leonard
Lou Ambers

Super Feather
Alexis Arguello
Erik Morales
Marco Antonio Barrera

Feather
Willie Pep
Sandy Saddler
Sugar Ramos

I don't know enough to go any lower then that.