PHX:
Right now, the Phoenix airport is more of a 2 star airport, but it is undergoing a lot of renovations so I applaud the effort. Sky Harbor International has an incredibly long way to go before it can be considered in the same class as some of the nicer international airports, let alone inside the U.S. The terminals feel drab and dingy. The old Southwestern-patterned carpets don't help, though there are eye-pleasing murals decorating the walls of some concourses. Relatively low ceilings and limited window views of the outside coupled with dense passenger traffic can make some sections of this airport feel downright claustrophobic.
Seriously though, entering this airport feels like taking a step back in time. Remember the retro Taco Time theme of brown and burnt orange? That's what Sky Harbor feels like. Speaking of food, the restaurant selection here is abysmal. Fortunately, the aforementioned renovations include the addition of several new eateries including local concepts. There's currently a lot of on-going construction.
At least the future is bright for Phoenicians.
Free Wi-Fi.