I got both AT&T and Verizon. Verizon is simply a better service, but AT&T has the better Phone so im pretty much stuck with both using my Verizon phone to talk and my AT&T Iphone for Data only.
Let Verizon come out with an Iphone and I will drop them in a minute, pay the cancellation fee to AT&T and even buy a new Iphone if I have to!
Uh... they just came out with a better phone. and its called the Droid.