My list includes; Royce, Ken Shamrock, Kimo, Tank, Don Frye, Marco Ruas, Mark Coleman, Frank Shamrock, Bas Rutten, Masakatsu Funaki, Minoru Suzuki, Rickson, Igor Vovchanchyn, Kazushi Sakuraba, Pele, Harold Howard and Art Jimmerson.
Royce Gracie will always top my list of old school heroes.
Igor Zinoviev. First guy I ever saw beat a major BJJ BB in an MMA fight. Lived in Brooklyn. Wasn't that big. Was a nice guy.
Hmm.. I'd say Gomi and BJ Penn (although they are both still relevant today, old school nonetheless)
x FOX x - Oleg
Vitor definitely counts as old school.
Good ones though.
Andersons_Chin - Randleman, frye, bas*Bas