JakaB,
I dont know what you are looking for, but I will assume that what you mean by "architecture and the X-factor" is that vague and amorphous determination of which is the "better course." Almost all (present company included) would agree that PD is the better course.
Doak and others have said something like, 'you need a world class site to design a world class golf course.' Setting aside whether RC is "world class" (as near as I can tell, PD definitely is), PD's site is superior to RC's. For one thing, PD has natural dunes and they are not only spectacular in appearance, but also integral to the golf. For another thing, PD's terrain is more varied than RC's. And, PD might have more interesting wind more often.
So, most definitely go to PD if you are looking for the better course. Especially if this is your last trip West ever.
That being said, RC is more obviously antithetical to what you and others sometimes profess to profess, and more likely to lead to cognitive dissonance and internal and external discord.
Plus it is fun to play.