Who Has The Best Cell Phone Service? [POLL]

I have had an iPhone for quite some time, so when I made the purchase I didn't have any choice. I had to go with AT&T.  Coverage in Fort Collins is spotty at best. Sometimes I even have to go outside my house to make a phone call.  It's not AT&T's fault. You can blame Fort Collins for that one.  For some reason they are against putting up very necessary cell phone towers.  Now I do have the option of Verizon, but it's too much of a pain to change plans. 

Do you have good cell phone service? Who is the best. It's our Web Question of The Day!