Not all of us are cerebral enough to sport an avatar of Povetkin's forehead thinking deep thoughts. Why do you pick Usyk?
Both fought as Southpaws. I am going with Oleksandr Usyk, because I think he is a better fighter and because I believe the styles favor him.
Moorer had slow feet/sloppy footwork, would go through inactive stretches during fights, and had a shaky chin, whereas Usyk does everything right.