I think this is a terrific thread, because it shows just how little consensus there is about what is a great course, once you throw out all the links and seaside courses which are there in part because of their setting and playing conditions.
Chuck: I personally would rule out from the discussion any course with heather, and any course which benefits from long views off-property. That's why I hedged on Crystal Downs and didn't consider Prairie Dunes. Classic parkland courses (Winged Foot, St. George's) to me are courses with trees and internal views only. I would've ruled out courses with lots of long grasses, too, but so many courses have let some acreage go to native in the name of environmental awareness that you would hardly have any courses left to talk about then.