In terms of quality of opposition? In recent years, the only name that jumps to mind as someone with a better resume is Holyfield.
I sincerely apologize, I have no reading comp. I thought you were talking about Lewis/Golota...which many, many people believed was the face off of the two best heavies on the planet.
OK, I am willing to accept (for the sake of your argument) that Bowe and Golota 'ruined' each other: therefore, anything that happened after that fight should not be considered. So, When you say that Bowe and Golota were the two best heavyweights on the planet when they faced eachother (7/11/1996), what are you basing this on?