We-ko-pa (
www.wekopa.com) and it's a longer drive but well worth it, the Dinosaur Mountain 18 at Gold Canyon (
www.gcgr.com).
Both are as good if not better than either of the Troon Courses (Monument and Pinnacle) and definitely better than either Grayhawk track. They're also usually much cheaper in price. Try to play with an Arizona resident and We-ko-pa is a real deal.
