Geoffrey,
I'm actually going to miss you by a day on playing the Cholla Cse (Saturday). I played Saguaro last month and really enjoyed it. There are quite a few other threads/comments on Saguaro that have taken place in the last few months if you care to search the archives.
Its very walker friendly with the green complexes and teeing areas melded together very well (something I'd never seen on a desert course). The playing corridors are generally wide enough to make the course challenging and playable, and there are some interesting short par fours (4 total, I liked #2, 7, and 10 quite a bit better than #16--as have others).
Have fun!
EDIT: Forgot to answer your last question, but so far of the courses in the area I would go with Saguaro. The Estancia Club would be a close 2nd.