#4 and #8 get the most attention. Personally, I prefer #8, but I'm sure many others would prefer #4. #4 is at the main clubhouse, so it feels more like a Pinehurst round, but I thought #8 was a better course. Most of the others are shorter courses, but some are Ross's if you're into that. I think #7 is only open to members, but I could be wrong.
Off-site, Dormie or Mid Pines, with Tobacco Road road on your way back to the airport (if you're going out of RDU).