So far my personal favorites regarding routing are as follows...
Seminole...it seems the property isn't that amazing, just that big dune and Ross takes you up that thing, down that thing, along the side of it, uses it to enhance the wind off the ocean, and open the views of the course and the ocean up at times.
The Golf Club and Harbour Town...I like to use the term pacing for their routings. They seem to take you on an adventure through tightly wooded areas only to open the course up with a dramatic shift in feel to a more open course. The feeling really is stunning. Harbour Town's shift in feel in much more dramatic as the tightly wooded fairways are much more severe there.
Sand Hills...I simply felt the flow from hole to hole was incredible. A wonderful journey that never got boring or tiring.
Holston Hills...I think this courses routing gets overlooked. It seemed to have that incredible flow that Sand Hills had and the routing provides excellent variety in shots and holes and is highlighted by great green sites.
Canterbury...Like Holston Hills, I think Canterbury's routing is under-rated. The property isn't big, but the flow is incredible, the mix of challenges is excellent, and the finishing holes are simply off-the-charts amazing.