LA Chowhound in AZ
4 days in Phoenix/Tucson. I've read Jim's Tucson Report and have taken it to heart. For the locals, I'd love to hear thoughts on:
(1) Best Authentically Sonoran joint/best overall mexican meal; (2) best breakfast in both cities. (3) A gourmand's rendition/fusion of native cuisine, but somewhere a little more upscale for my finicky friend; (4) A place that's open on Sunday in Tucson. (5) Best restaurant in Nogales, if such a place exists.
A couple of ideas:
Best Sonoran or Mexican: Los Dos Molinos or Los Sombreos in Scottsdale(which, IMHO, doesn't get enough touting on this board).
Best SW fusion: Vincent Gutheieu (sp.) Not my personal favorite, but it fits your description and requirements for a upscale, and it is beloved in this city.
Roxand also does fusion, but not particularly SW. Also for your consideration: Norman's Arizona and Roaring Fork. Both upscale, SW influenced, but not exactly fusion. Both are very, very good.