Easy his second place to Dorian at the olympia, after that he tried to carry to much mass and never got his condition right, the pec hurt him later on as well , but mainly condition. All time Best.
Dorian 93 olympia
Wheeler ironman 93
Levrone 92 olympia
Honourable mention Ron Coleman for ripped muscle mass alone, structure wise, he wasn't on the same level as the guys mentioned above, and he competed in the all drugs era of bodybuilding which seemed to start after Dorian in 93. All the guys above also went down the same path of size at the cost of shape. Bodybuilding peaked in 93, since then its been on a slide. Now outside of a very few most look like walking side effects,