"The comparisons of the compulsory poses cannot be overemphasized
as these comparisons will help the judge to decide
which competitor has the superior physique from the standpoint of
muscular bulk, balanced development, muscular density and
definition."
Yates has the advantage in muscular bulk, balanced development, and muscular density. Ronnie has overall superior definition. That is why Yates would win.
As I pointed out above, Yates wins 3 out of 4 of those criteria, however, I still believe it would be a very close battle, as Coleman clearly has the advantage in this regard:
"In assessing prejudging, overall shape and that of the various
muscle groups is important. The judge should favour competitors
with a harmonious, classical physique."
However, I'm really not so sure how closely the judges follow this as Yates defeated many competitors with straight firsts eventhough they had superior overall shape (Ray, Levrone, Sonbaty, Coleman, Wheeler, Dillet, etc).