I've yet to play s truly perfect, i.e. "infallible" golf course, but Ballyneal comes closest by my sensibilities. It is hard to find fault with Sand Hills, Barnbougle, Friar's Head, or Pacific Dunes. there are lots of other GCA favorites that are not far behind, such as Kingsley and Wolf point. Of those, Wolf Point amazes me most, given the the land was so seemingly unimpressive before the creation of the golf course.