sucky, having better abs does not mean you have better shape than someone if your arms, delts, chest, quads, waist and taper are ALL not nearly as shapely.
"Shape" is subjective. I can argue that Dorian's entire midsection had a better "shape" than Ronnie's. I have
always conceded that Ronnie's muscles have a fuller appearance than Dorian's, and that the latter's relative flatness was one of his major weaknesses.
Personally, I think Dorian's pectoralis and latissimus have a better shape than Ronnie's. Dorian's chest always had cross-striations in them, even in 1997, when he was over 270 lbs. Where is the chest most judged and evaluated? At the side chest mandatory. Now, Ronald
himself has conceded that Dorian had the best side chest ever, so not even your idol believes that he has a better chest than Dozer. I personally think Arnold takes that trophy, but that's only my opinion.
As for the arms, I only agree with you when it comes to biceps. Obviously, Dorian had the better triceps and forearms. So, saying that Ronnie has better overrall arms is not a reasonable statement. When it comes to latissimus, teres major and erectores, I think Dorian's are better, too. Ronnie only matched Dorian for lat width at the 2003 Olympia, and yet Dorian still had the thicker christmas-tree. Ronnie's back had more details than Dorian's at the 1998 Olympia, but Dorian's back was wider and thicker, and his lower back was dryer.
Check out the thickness and striations that Dorian had on his chest, and the side most dominant side triceps of any Mr.Olympia ever.

SUCKMYMUSCLE