Floyd jr? Is there a 147 pounder last 30 years who trains harder?

Floyd has been compared to fighters from the past and we debate back and forth on how he would have competed against those fighters. Here's a new question. How would you compare Floyd's work ethic in the gym compared to past greats like Duran, Leonard, Benitez, Hearns and other former welterweights" Does anyone have information on how these guys above trained? I know some fighters back then would let themselves get way out of shape, you had fighters drinking and doing drugs between fights and then going back to training camp to get back in shape. It seems Floyd is always in shape, doesn't drink or smoke and is very committed when he trains.