Tony,
I would imagine TSN is a course that gets better the more times you play it. There is some interesting architecture and I think Coore and Crenshaw did about as well as one could without moving dirt on a boring flat site. There are some holes of note, generally early on both nines, but I remember a lot of pretty similar long par fours that did very little for me. If you want to play a C & C course on a flat site, I'd go with Warren. Saguaro for me beats TSN in virtually every category...variety, memorability, aesthetics. I suppose TSN might be harder playing as a par 70, but I don't really care about hard. They're both very playable, especially for desert courses.
I don't get the love for #2 at TSN either. I've seen the same strategy on a little 9-hole course called Robin Hood back in Indiana. Challenge the OB to reach the green in two or bail right and likely make a pretty easy five. Its a good hole, but of the par fives I've seen done from Coore/Crenshaw its about in the middle in terms of overall interest. The 10th at Warren and the 16th at Colorado GC would rate higher to me, and all the ones at Saguaro are just as good. The 12th at TSN is a really good little hole that's the most unique on the course IMO.