Unlimited data? Check
Ability to call and use data at the same time? Check
Good coverage in my most regularly visited cities (DC, Seattle, Maui)? Check
Established customer with excellent CS from both carrier and Apple? Check
Yup, I'll be staying with AT&T.
Once Verizon and AT&T roll out 4G nationwide, I'll consider it depending on prices. For now, there's no reason to.
On ALL OF THESE POLLS I CANNOT CHOOSE ANYTHING!!! Seriously people. You need to add a "I'm already on Verizon option".