Matt,
I think most majors are set up in a one-dimentional approach. As such, I think Sahalee (with all it's tree lined limitations) will be a terrific test for the Sr. Open. Perhaps I like the course a bit more than you do, but no matter - we agree it isn't among the country's super-elite, and that there is nothing particularly special about the greens.
What surprised me is your mention of Desert Canyon as part of the discussion. I've probably played DC a few more times than you have, and in wildly varied conditions. It is not an easy course, I agree - but it's not a championship course either. It is equal parts entertaining and strange - and when I play there I feel that the site could've yielded a much better golf course. Maybe what doesn't feel right is that DC seems a bit too contrived and awkward for such a naturally rugged and beautiful environment. Regardless, it isn't boring to be sure.
I'm not suggesting that reaching #6 in two would be a pushover, not at all. Although it is 690 yards, it typically plays fast and dramatically downhill. It would be awesome to see the PGA bombers take on that hole. I think a few would surprise us and get there in two (or try), and many more would be brought to their knees.
Sean,
There is no fantastic golf at Echo Falls. Poor choice of words on my part. I like some of Bear Creek, although I haven't been there in years and years. I thought the front nine (I think it's still the front - the one that ends in a very long par 3) was generally quite good with the exception of holes 4 and 8. The back nine always felt forced and awkward.