I don't like the criteria most of you's are basing it on. To me it's the short guys that maxed out their bodies who are the most impressive, not the ones who played it safe and just did enough drugs to bring out their natural lines.
In that respect, Priest when he was 21' Columbu was the most massive per square inch. Benaziza could not have been bigger. Labrada was bullshit. Good physique and great symmetry but any teenager could've achieved that shape given those chemicals. At 5'7 I got as big as him (195), obviously not as cut not same muscle size, naturally. So fuck him.
How tall was Munzer? But really, Flavvio Baciannini was actually flawless. Other than being too short, he had zero deficiencies in his physique. David Dearth too. Sawn ray was lacking calves a bit and legs almost overshadowed lower body