Made Barkley look like an ineffective amateur to me. I had him slightly ahead in the Starling fight, which might have been the point where Nunn's personal issues started effecting his ring performances.
Looked ATG against Barkley and Roldan to me. More impressed by his performance against Roldan than Hagler's (who had a rough go before he thumbed Roldan) and Hearns (who had to hold on for dear life on multiple occasions). Nunn stood in and let Roldan bang with him to prove that he wasn't just a runner. Tactically dumb but he pulled it off. Got rid of Roldan in short order after he caught Nunn with a wakeup punch in the 9th.
Nunn had Roldan down heavily in the first round.! He was on fire at that time Barkley would've been a handful for any fighter in history in his 80s form..
It's very close for me between Monzon, a '77-'78 Hagler, Kalambay at his very best, and Nunn at his very best, as to who is the best middleweight I've seen on film, ever.
I checked he wasn't ranked and was more recently ranked as a light-heavyweight than a middleweight. I'd consider the reigning welterweight champion a more legitimate contender personally than an unranked former-contender but it's all swings and roundabouts.