Guillermo Rigondeaux by a country mile. Defensively and offensively, this dude is NEVER not in an optimal position to evade or attack.
Hagler, Ali, Duran, Leonard, Camacho, Napoles, Benitez, Robinson, Prime Tyson, Whittaker and the list can go on.
Hopkins. His ability to control the distance and never be out of position was amazing. He was never off balanced and always had his feet under him.
Sweet Pea's footwork was not defining at all. He crossed his feet, and if you're watching you've seen him do it. His footwork was good, but there's no reason at all to make out like he's \thread material because he's not.