Its all about personal views and opinions with objectiveness
For example Nasser had very big well developed legs, but they did not look as balnced as yates' due to his long torso and short legs
You may disagree
Ray had a flawless double bi and side chest, both strong poses for nasser, IMO ray looked better. Taking into account ray overlapped generations, ray could do a vaccum, in nassers era that's an impossibility for the top guys. I'm not saying nasser should do a vaccum, I'm saying ray could go toe to toe with nasser, and ray competed against what, like 6 or 7 mr olympias in his career, ray was in a different class
You may disagree
Objectively, and I can say this objectively, because I feel both guys were top bbers in their own right, and not a fanatical fan of either, never, ever did nasser look better than flex. Its an impossibility. Its structural, genetic, and just impossible. Only thing he could get over on flex is conditioning, if flex was off.
You may disagree
Its all about perspective