I'm getting ready to move to Washington State in a couple months. Right now i'm in Italy, so i've been looking online for new cell phones and carrier information.

My first and biggest question I guess would be, What provider has the best coverage in Washington State? I saw that T-Mobile is Headquartered out of there, so i would assume they did, but when i looked at the map it wasn't too convincing.

Verizon has really good coverage everywhere, but their plans aren't too impressive.
I haven't looked into AT&T yet, i found this site first.

I guess big reason i as is because one can look at a coverage map all day, but that's just a map, getting actual user info is the best indicator. any advice would be great.