Coleman most muscular bodybuilder ever, best overall bodybuilder Yates 93, his structure was far superior to Coleman but Ronnie had more muscle, but Yates more overall conditioning and no obvious genetic weakness until he tore his arm, they were not great, but Ronnie had no calves till he oiled them, but both guys in their own way represent the very best, although I would put Flex Ironman 93 above colemans best due again to superior structure. Modern day bodybuilding serves Ronnie better than Yates as the judging criteria moved away from structure towards muscle for the sake of muscle.
Overall I was a Haney fan whilst I respect Dorian and give him number 1 based on 93 I do believe he started modern bodybuilding and the trend that it is currently on.