i say Muhammad Ali

b4 his exile he was impossible 2 beat

when he cameback he was still almost impossible 2 beat
beat the indestructible sonny liston 2x-

beat the indestructible George foreman and ko his ass(the only man 2 do so)
beat frazier 2x
beat norton 2x

all of those fights he wasnt even in his prime---imagine if a prime ali existed!

ray robinson however was impossible 2 beat--the only time he could get licked was when he was an old man at like 44

if ali reached a prime i believe he would have been the greatest p4p fighter 2 ever live---thats y i pick ali

this is a very hard choice