Sean,
I listed 3 courses that in my opinion have 18 great holes. Shinnecock, Merion, and Pine Valley. Which holes aren't great? And among these three courses are some of the greatest holes in the world:
Shinnecock: 1,6,7,9,10-14,16
Merion: 1,3,5,8,11,14-18
Pine Valley: 2,5,7,8,12,13,16-18
Mark,
Sorry for straying from the topic