Doomsday vs Sebastian Shaw

I would back Doomsday, as things stand. Shaw absorbed the energy from the reactor very slowly. Only things I can recall him absorbing rapidly were some bullets, a grenade, and one of Havok's energy rings, and none of those are comparable to Doomsday's power output.

on top of Shaw not being shown taking the amount of energy that DD would put out but DD absorbs energy in a superior way to Shaw as well, the only reason he died at all was due to K; everything he got hit with, including powerhouses like Superman and Wonder Woman only served to make his body stronger and deadlier