I love these comparison photos. Sharpen one, dull the other.
There's no way to accurately judge two bodybuilders from different era because of correct spatial distance for heights, etc. Even camera stock is an issue.
Only I think Nasser takes him is side tricep. He gets utterly destroyed in everything else.
And Jay's ab/thigh is underrated. Only distraction are his obliques, that's why he doesn't "crunch".