At WW, I like Ray by 14th round TKO. At MW, I like Robinson by earlier, but still relatively late stoppage.
I think Duran is technically the best boxer ever to lace on the gloves. His come forward aggression mixed with his subtle defensive and power in each hand means he wins 1 of a five fight series. But that's all. Robbo was far too good a puncher, and Duran wouldn't run.