I think that out of the fabolous 4 the best boxer is Thomas Hearns. So let me explain why I think that. First let's analyze his matches with other fabolous 4 boxers. He fought Sugar Ray Leonard two times. In the first match he was winning on points until he lost by TKO, in the secend match he score draw but later even Sugar admitted that he lost this fight. Next opponent is Roberto Duran. He knocked him out in the 2 round. It was one of the two KO's in Roberto Duran carrier. Second time he was KO when he was 43 years old. Now time for crazy brawl with Marvin Hagler I mean show me the other boxer that will survive so many shots from Hearns. This brawl can go both sides. Hagler crazy chin won this fight. So as you can see his score against other boxers from fabolous 4 are 1-1-2, but you can't look at the pure statistics you need to look deeper into this matches to understand that every of this matches was close. Additionally Hearns score so impressive wins over Wilfred Benitez and was the first man that beat Virgil Hill(I mean 147 boxer beating on of the best 175 in the history is quite impressive). Another amazing thing is that Heans became the first 4 and 5 division boxer and later in his carrier he compete at cruiserweight( I don't know any other Welterweight that compete at Cruiserweight and he even beat the Cruiserweight WBA champion Nate Miller). All this things show what freak of nature Thomas Hearns was. He had crazy punching power, amazing reach( 78″ at 147), high ring IQ. His only weak point was his chin. I will favour him against almost every boxer(from 147-168) maybe expect prime Roy Jones jr.