Matt and Tommy,
Thanks for your thoughts.
Most of the golf I've played in the mountains has been in Summit County, plus Pole Creek, Haymaker, Aspen Golf and River Valley Ranch. I haven't played much in Vail and I haven't played the Enghs out west.
Regarding the courses I mentioned, I agree with Matt that I like the back 9 at Raven at Three Peaks quite a bit (Tommy, I don't see the Raven as goofy golf, except perhaps #9). The par 3s and par 5s on the back are good holes, IMHO.
I also generally agree that the Keystone courses and Breckenridge are roughly comparable. However, I have a soft spot for the Ranch course because it's walkable and it's really peaceful in that valley, especially in the early morning. I liked the River course better than I thought I would. Yes, it's routed through condos on the front and then the back is just kind of wacky, but there are some fun holes. I might rate Breckenridge behind both of the Keystone courses--just nothing too memorable there at "Nicklaus' only municipal golf course."