Carl,
I doubt there's a specific answer to your question, as Mr. Mac has illustrated.
Each panel is different and each rater is different.
I know in my case, I was fortunate enough to have lived in quite a few regions and played a lot of golf, at different courses, in all of them. That didn't give me the confidence to think I could be a rater, but, apparently it gave me the exposure to be one. One of the confusing things at first, was what was I suppose to do. Voice my own opinion or try to figure out what others would like. I was told to vote my opinion. So, my preferences play a major role in how I vote.
As has been proven on this site, there's no consensus when it comes to golf courses. That diversity of opinion is a good thing for the lists and a good thing for GCA's.
I hope that answered a few questions, if not, ask and I'll see what I came make up...uhhh ...I mean answer.