Robinson knocked out iron man Jake LaMotta, huge middleweight Randy Turpin (who knocked out Don Cockell, a challenger to Marciano's heavyweight title), former champion Rocky Graziano, Bobo Olson three times (Olson would beat Turpin for the vacant middleweight title), Gene Fullmer, and was winning going away against Joey Maxim, a man who had wins over Jersey Joe Walcott and Floyd Patterson. Robinson at least outpoints Harry Greb.
well i would have to go with greb mainly because of his size, it sucks that u cant see any footage of him and i hate betting against srr but from what i have read of greb he would probably beat ray
From lightweight to light heavyweight: Armstrong, Servo, Angott, Shapiro, Zivic, LaMotta, Abrams, Gavilan, Belloise, Fusari, Olson, Graziano, Turpin, Fullmer, Basilio, Castellani, Maxim. I don't see how Greb's record is more versatile than this.
You forgot Gibbons. Walker and Flowers were great middleweights. Greb beat Walker when Mickey was moving up from welterweight. Flowers beat Greb twice over 15 rounds. Rosenbloom, Loughran, and Tunney were great too. The rest were good fighters. But this group is not the class of the Robinson group. Boxers were better in Robinson's time than in Greb's. I say this as a huge Greb fan, one who puts Greb in the top 10 of all times. The problem for Greb is that Robinson is the greatest of all times. If they met at 160 Robinson would outpoint Greb. That's my pick.