Archie,
Wish you had never asked this question. How many angels can dance on the head of a pin?
Haven't played since the finish changed but for 16 holes pre-Open Portrush was as good as anything I've played.
and 4 and 5 still occupy a spot at the front of my mind 10 years after I last played it.
RCD, on the other hand, is something totally different. In decent conditions and under the right light you can't be on that golf course and not wonder whether it is even real. The golf is wonderful, of course, but the sensory aspect of it is unlike anything I have experienced anywhere else. It occupies a category of one.