Jim,
I don't think I am capable of coming up with at top 10 or 20, or whatever.
I am really a big tent kind of guy when it comes to course evaluation. Instead of trying to decide if one course is better (whatever that means) than another, my tendency is to look more at what the land had to offer and how well I perceive the designer did with that piece of land. Some of the best designs I have seen are probably not ones that would make a best of list, but I enjoyed them because the constraints were so overwhelming, that if a course was designed and constructed such that I enjoyed playing the course, then I give it a high mark. Obviously, there are certain courses that have been very well done on great pieces of property, and those are the ones that are usually at the top of ranking list, and top of my list also....Cypress Point (maybe the greatest golf course site ever), Pine Valley, The Old Course (just the uniqueness of it) Pebble Beach (although this is one that I reallly don't think maximized the routing potential) but the site was just too good to miss. I find myself thinking very highly of certain courses while I am there and playing them, so I really am not one to ask about a fixed top ten courses. I know that when I play Cabo del Sol, I am rarely disappointed. When I play Spring Creek Ranch outside Memphis Tenn, I am rarely disappointed. (this is a course few here have probably every heard of, but it is one of my favorite courses) I am sure many here have many of the same favorite courses that would never make a top ten list. Great designs don't always happen just on the great properties, but when they do, then they usually achieve 'greatness' in the eyes of those that think about such things. However, there is a lot of very good design that happens on marginal properties, just to get an enjoyable course on the site. I appreciate that a lot.
So, no Ranking list will ever come from me....too many good ones out there to say one is better than another.