I always thought Judah would have made a killing at 135 and Gainer would have had no trouble making that weight but for the sake of argument let's just say who wins this one with each at their best.
It's a BETTER Fight, Lb for Lb... Zab Straight Up MURDERS Gainer @ '35...Despite his LENGTH, Gainer Didn't Really Struggle to Make '26, from REED's Recollection...His Chin was SUSPECT @ That Weight and Would've Only Been Compromised Fuuuuuuurther @ Lightweight...Early Doors, No Less... Zab KO 3 @ Lightweight, KO 6-7 Lb for Lb... REED:hammert:
To answer the question though, Judah was plain and simple a better fighter than Joke Gainer. P4P or otherwise.