Matt,
I do intend to play the Desert Mountain courses and Whisper Rock, but at the same time NONE of those make the Golf Digest top 10 and only one of the Whisper Rock layouts make Golf Week's Top 100, so while they very well might be better than the layouts I have seen, I have played 7 of the top 10 in Arizona per Golf Digest, plus Quintero which makes the GW list. I've actually played more courses in Arizona than I have Colorado, although the sample is pretty close. Without question I'll be in a stronger position to speak about things once I've played them all...assuming of course I ever get that opportunity.
Right now, only Forest Highlands Canyon would be a sure top 100 course to me from Arizona. There are a few others that would be top 100 "modern" layouts using the GW criteria--Saguaro and The Rim. Quite a few others are close, but would likely just miss. There are things I like about desert golf, but with Chapparal, Desert Forest, and even Seven Canyons the narrow corridors push them out of top 100 consideration for me. The three courses I do like are all wide enough that they don't become a lost-ball fest if one isn't on with the driver. Some folks don't mind that, but width is important especially with desert/brush on both sides of every hole.