hmmm I wont go through every division but a few

Heavyweight
Ali
Louis
Holmes

Cruiserweight
Holyfield
Hill
Jirov

Lightheavy
Michael Spinks
Roy Jones
Archie Moore

Middleweight
Hagler
Hopkins
Monzon

Welterweight
Ray Robinson
Ray Leonard
Tommy Hearns

Lightweight
Duran
Mosley
Leonard