Of all the airports I have traveled to, PHX is probably my home airport away from home do to my love/hate relationship with USAir and love of Southwest. Personally there is nothing outstanding about this airport other then it serves as the west coast hub for USAir and a large hub for Southwest.
The airport facilities itself are nothing to write home about. They are the usual shops, restaurants and all things Phoenix/Grand Canyon but that's where it stops.... and personally becomes very boring. The terminals themselves could use a refresh/remodel. Maybe some new carpet, a little paint and some better food to choose from??