In baseball they say great pitching beats great hitting. Likewise the great defensive backpeddler with speed generally has the advantage over the big punching forward-coming fighter.

So, I think the most likely candidate to beat Sweet Pea would be his fellow defensive artist, PBF. Meldrick Taylor in has prime would've been an interesting test. His speed might have caused trouble for Sweet Pea.

If sugar ray could outbox duran, I think Sweat Pea could too. Chavez is the test case there and even though Duran had superior movement and defense to Chavez, I doubt he could get to Sweat Pea.

SRL however was also a great boxer and had more power. He was a natural WW and would've had the height and reach advantage, so ultimately you have to go with him. Ditto for Hearns but with these two the real differnce is size. Mayweather and Meldrick were more in Seat Pea's natural range.