I like DLH. He does something few boxers do: rarely if ever does he duck anyone. If anything he bites off more than he can chew when picking opponents. He has lost to some DAMN good fighters. He has beaten some good ones too. There are so many "good" fighters out there that when you look at their record, you're like, "He hasn't fought ___,___,___,___,___,etc. All of whom are bad ass fighters in the same weight division. why?" When you look at DLH, you can say, "Yep, he pretty much fought every good fighter in his weight division at the time he was in that weight division." There aren't any glaring, "Why did DLH never fight ___?"
I think Mayweather wins by decision after 12 rounds. DLH has only been knocked out once by a much bigger, stronger fighter.