I've always felt Duran was a much different fighter at 147 than he was at 154. Yes he had the good win over Davey Moore, but he also lost to Wilfred Benitez(Past his own best), and he was knocked out by Hearns brutally in which he was coming off the loss to Hagler and was out of shape. Word is he got up to the 200 pound range or close to it and had to shed all that weight and nearly didn't make the weight at the weigh in.
Styles do make fights, and Hearns height and reach will have always been a problem for Duran. But Duran would have the right strategy IMO and he would not just stand outside and box the way Leonard did those first 5 rounds.
It would be a war for sure but I think if Duran keeps it inside, he'll avoid the big long straight right hand and force Hearns to use other weapons. I think its a great fight and a classic. But IMO Duran closes this one strong to earn the deserved decision victory. Don't think he stops Tommy but the same pace he gave Leonard would take its toll on the Hitman as well and as such I think he goes on to victory.
Duran via UD