My votes are view-related. . . While most of these access great terrain to ski, I also enjoy them for the views while I am riding!
Resolution Chair at Copper has this great view south toward Leadville (and some great, frequently empty terrain):
At Vail, Chair 5, The High Noon Lift. I love some of the long runs in Sun Down (although some of my favorites are actually accessed from the hike at the top of the Game Creek lift), but the combination of the bowl and views can't be beat.
Looking at fun terrain on West wall of Sun Down:
Looking back, at the Holy Cross Wilderness:
And for a non-U.S. North American honorable mention, I'd suggest the Summit Platter at Lake Louise. There's some amazing bowl skiing back there, and frequently untracked snow. . . if you're man/woman enough to get there. That long, steep, painful platter has motivated more than one bail-out!
Oh, and as long as I am talking Canada. . . Sunshine Village's Continental Divide Express. It doesn't access the best terrain on the mountain, but on the rare occasion that it is clear enough to see all the way to Mt. Assiniboine, the ride is well worth it, even braving the frequent wind. One of the best views I have ever seen!