Patrick --
I have to admit, I was quite surprised that Tom D. was so complementary of Shadow Creek in the Confidential Guide. Tom is obviously far more knowledgeable than I am about this stuff, and I can't think of another course I've played where my views of a course have been so far from his. And to be fair, I don't like golf carts or rental clubs, and unfortunately I was stuck with both for my round at SC, so that didn't help my impressions of the course. So SC probably has a lot of merit to it, architecturally, that I missed in my first (and probably only) round there.
You lose me a bit when you point to Golf Digest as an authority (its ratings system has shortcomings that have been chronicled here quite a bit), and let's be clear...no leading authority thinks SC is a Top 10 US course. I think the latest GD rankings put it at #27, and Golf Magazine has it at #50. But your point is a fair one -- the course gets very good ratings, and my view (which would put the course even further down the Top 100) is a minority one.
I'm not an arborist, so I can't tell you what type of pine trees they planted at SC. But I can tell you that a number of the pine trees looked pretty bad, a fact that even the caddies talked about. That may be because, while you're correct that pines are found in a lot of places in North America (including North Carolina, where they're incorporated into the golf courses more heavily than any other place I've played), they aren't indigenous to the Nevada desert. Some tree management is in order, and I can't imagine that it will be easy. And they've got real turf issues as well, the 17th green in particular is just a mess.
I can't define "soul" for a golf course...if you're seriously asking, then you'll never know. Certainly, it's highly personal. I've played Cypress Point, Oakmont, Pacific Dunes, San Francisco, Royal County Down, Pasatiempo, Ballyneal, Barnbougle Dunes, Royal Melbourne, and a number of others that have "it," at least for me. It's a quality that I can experience when I'm walking a course, and enjoying a setting where the golf is in harmony with the natural surroundings and the features of the land. The courses have character, another term that almost defies definition.
I didn't get that feeling at SC...it's not designed as a walking course for obvious reasons, and it's not taking advantage of any natural terrain...it's all fake. Something about man made waterfalls on golf courses that drives me nuts. It sounds like you're a big admirer of Steve Wynn and that desert golf works for you. Maybe desert golf just isn't for me...or maybe I haven't played enough desert golf. Both distinct possibilities.
Rob