We are going to Arizona in late Sept/early Oct. We have not been back for years. We will spend time with friends in Apache Junction, Phoenix, Cave Creek, Carefree, Sedona, & Grand Canyon. We love a wide range of foods/restaurants, from hole-in-the wall joints to creative small plates. Just not interested in "formal" places. Of course, we will have to sample Mexican.
I assume asking for best Mexican is like asking for best Po-boys in New Orleans (-: