Too bad you are wrong. Ronnie's back is thicker and just as wide as Dorian's in 93. Ronnie also doesn't have asymmetry problems like Dorian. Dorian's traps don't even line up and his Christmas tree looks like someone trimmed it on the right side.
I don't think I'm wrong and here is why . The two pics you posted are of Dorian from the 1993 Mr Olympia where he weighed 257lbs and Ronnie from the 1998 Mr Olympia where he weighed 249lbs , now I obviously have a problem with your ability to scale and let me explain why. the pic of Ronnie is taken by looking up at him making him appear wider and the picture of Dorian is almost straight on .
The pictures aren't scaled properly simply because if you look at both pics Ronnie's waist actually slightly bigger than Dorians . now you've complained I bitched about this before but obviously if it was scaled correctly Dorian's waist would be wider but so would everything else thus making it a more fair & objective. there is obviously no way in hell Dorian's waist at 257lbs is the same size or slightly smaller than Ronnie at 249lbs , Ronnie's waist & hips at the 1998 Mr Olympia were insanely tiny thats something never said of Dorian at 250lbs
To say Ronnie's back at 249lbs is wider than Dorians at 257lbs is just spectulation , if anything his back is comprable in terms of width and maybe slightly less than Yates , we're not talking Ronnie 2003 here . don't mistake Ronnie's better V-taper as having a wider back because a small waist & hips give the ilusion of so until they stood side by side it would be evident who had the wider back.
Now in terms of back thickness at roughly the same weight , I think its pretty obvious Dorian has the thicker back of the two Dorian's hallmark was his muscle density. Dorian's traps are thicker than Ronnie's without question , his lats are thicker as well especially his lowerlats and Dorian's erector spinae is thicker .