This discussion comes up each spring and it's really not worth much discussion. Even my home club, Carolina CC made the list one year and it's not top 20 in Raleigh. There are some good folks on the panel and it is a business magazine. I think a lot of them vote for places they play and enjoy often. You also have to remember that access to Diamond Creek, Wade Hampton, Eagle Point and even Forest Creek can be difficult for most North Carolinians.
Is Champion Hills top 10 in North Carolina? Only GD seems to think so.