Hammering Hank & Roberto Duran would have boxed fifty rounds because Duran although physically intimidating was fast. The second Dejesus fight revealed how Duran rolled with the punches and threw great counter punches but Benitez got him when he was out of shape and Hearns was a quick punching monster and Roberto blinked. Whitaker might have played but Duran would cut the ring off and be confident enough to remain enraged through twelve or fifteen. He had natural endurance and Hatton would be made to order. Julio Caesar Chavez although in his prime seemed similar to Duran would definitely have trouble with Roberto who fought everyone up to 160lbs. So with Pernell he gets the decision in 12 or 15, Late K.O. or decision over Chavez but he would bull Hatton and give PBF fits over 12 and send him to the canvas once late. I am saying that this is to be done in one era where they all had access to the latest in training equipment and trainers. Duran and Benny Leonard are still considered the best lightweights of all time and Duran was a three division champion as well. I was in the house when he beat Buchanan.