If you have a short connection through PHX, you better be flying in your running shoes.
It baffles me how someone ever thought this spoke and wheel layout (I made that up) was a good idea. Perhaps he/she just wanted us to get in a good workout between flights? On the plus side, when stranded here overnight once, I had plenty of ways to get in a nice 5 mile run through the terminal.
While the airport is difficult and confusing to navigate, the food options are great and free wi-fi always gets an automatic extra star.
Car rental is waaaay off-site - allow another 45 or so if you are returning a car.