The Duran who fought Hagler (or the one who fought Barkley if you like) vs the Benn who fought Barkley and Dewitt.
I know people just adore Nigel Benn around here, but I think a careful, ready Duran is far too crafty and defensively cagey to lose to a guy like him... though admittedly, he'd be under lots of pressure early on from all the bombs being thrown his way... the longer it goes, the better for Duran
I dunno...I don't see a decision in either scenario. Either benn knocks him out early or Duran gets to him late.
Duran by late stoppage is a definite possibility, over 15 a strong one. I don't personally see anybody without the second name 'Hearns' KOing Duran. Possible when you punch like Benn, but I would bet against him landing solidly enough often enough to pull that trick.