Sean:
Well, Rock Creek is still not in anybody's rankings, so until more people see it I would have to say that's our most underrated. But of those which have been open longer, I would say our two most underrated courses are Tumble Creek (because of the houses, even though there aren't many) and St. Andrews Beach (because of the financial troubles they've had). I would be perfectly happy to take a prospective client to either of those, but they get little love in the various rankings.
Stonewall gets no national exposure, either, but there are enough people from Philadelphia on Golf Club Atlas that it's gotten more than its share of publicity. Neither of those courses makes our own top ten, but it's one of the first places I enjoy getting back to.