Ricky. Roger was a good fighter, and a good puncher, but overall not nearly as good as his nephew. He'd win some rounds, and hurt Hatton a few times, but ultimately I think Ricky grinds him down to win either by decision, or Uncle Roger retires on his stool late.
Kind of like Chavez-Mayweather 2? I can definitely see it being like that. Hatton would have to be very careful of the sneaky right uppercut. That was a beautiful punch that Roger dropped Paz with, and should be effective against shorter swarmers. Roger was chinny, so I wouldn't be surprised if he gets stopped on the canvas (rather than a corner stoppage).