Trying to assign mathematical rigor to a qualitative artistic critique gives the false impression of statistical significance.
Well, any intelligent writer needs an intelligent reader. The real question here is whether golf courses can be compared at all. If you deny that, because you think golf courses are works of art, then any attempt at ranking them is ridiculous. There is no ranking of old master paintings out there that pits Rembrandt against Leonardo da Vinci.
If, however, you believe that golf courses do possess artistic qualities, but are largely the result of craftsmanship, then they can be compared along certain criteria. Any craft product, even something as taste-dependent as wine, can be ranked that way.
I am of the latter opinion and try to fold the artistic qualities (which are 100% subjective) into each of my categories. But I also think golf courses are very similar (18 holes, all have fairways, tees and green complexes, most have bunkers or water hazards, all have a variation in length, shaping or soil) and, more importantly, those similarities have a bearing on how much fun I have playing these courses.
It's different with old master paintings, they also have common properties (amount of yellow paint used, panel material, age), but those properties have little bearing on how much I enjoy the painting.
The advantage of having a certain number of categories (don't overdo it, obviously) is that my ranking gains independence from subjective circumstances. For example my mood or my score on the day I played the course or even the agreeability of the folks I play with. If I simply assign a single number for "how much I enjoyed my round", then any course I play in bad weather is at a natural disadvantage.
That's a bit like saying I didn't enjoy the Mona Lisa, because the crowds were so huge that day and I had little time to study it, so for me it's not a great painting.
Ulrich