In a winning effort, knowing what we know today, I think a case could be made for Jerry Quarry against Lorenzo Zanon. JQ looked horrid in getting shut out, but Zanon had a glass jaw.
You think Lewis was more shot than Bowe in the Zumbrun fight? I don't know whether to support this post or not.
Louis-Bivins for best decision win might be a good candidate. It was Joe's final victory, and he was weight drained at 203. While Jimmy was actually more ring worn through his competitive wartime activity, he still had a few good wins ahead of him in his remaining career.
Matthew Saad Muhammed was the definitive shot fighter after( possibly even during) his fights with Dwight Qawi until the end of his career.
Meldrick Taylor and Terry Norris were abysmal their last few fights and are hardly understandable today.