Certainly I am no expert so with that said I'll give my opinion.:dry:
The company you go should have a lot to do with where you are right now and where else you plan on using it. There isn't a single firm that's got 100% coverage yet so it really depends on whose coverage fair to great in your area.
For the most part you'll have good service in major cities (:mad:NYC:mad:, DC

, LA

etc.) and from what I've been told Verizon has pretty good service wherever it's present.
The best thing you could do is ask the people in your area and where you'll be traveling to how good their Verizon or Sprint

service is.
- Bonne Chance -