I know they both have coverage here. I have Verizon right now but we've been with them forever and they've made no effort to even match the deals they are giving new people. I really wish I could find out for sure. We are thinking about switching over.
All it takes to pull up the coverage map from Mobile Nation, it is just about identical to Sprint. Like I said Verizon has very little coverage in Alaska while Sprint has a bit more and the Mobile Nation maps just about mirror that of Sprint.