I have see Duran fight many times and I saw him train as well. Some people forget his head movement was superb to say the least and just for fun he used to use his head to work out on the speed bag. He used to jump rope in a squat position in his prime year workouts. He was a closet boxer that could not only circle around you but adopt and change gears when he got the distance he wanted. His defense when needed was prime stuff. I remember when he went after the elusive Vilomar Fernandez and the challenger used every trick in the book and he repeted himself and Duran knocked him out in the fourteenth round. He always dictated the ace and when he chose not to there was a KO.
I am a Duran fan and I wish to say that before anyone gives Sweet Pea the nod remember Duran fought everyone that accepted his challenge and he took risks. Sweet Pea was a great defensive fighter and Duran was no Hurtago. His endurance was unquestionable but against Duran who was always a different breed of cat and a natural predator, his work would most definitely be cut out for him. I thought he won when he fought De Lahoya but he lacked enthusiasm and the judges picked up on that. Chavez lost that night IMO when he fought Whitaker but that was not Duran across the ring.