our criterion was coverage and roaming costs in a very rural remote area.
Sprint was the first major company to give us coverage in
the eastern UP of Michigan. (we live on an island in the summer with no power etc).
But times have changed recently. The tower near us just went digital!
So things are much better than they were.

My son has AT&T now, and runs an iPhone with it.
He had pretty good response with it last year at our place.
It was a bit slow. But then my Sprint sometimes goes down up there too, if the towers get overloaded.

Our contract is up on that Sprint, and we may switch to AT &T
eventually. My husband likes the Nokia we have, and really our needs are small. Coverage was the biggey always for us.

To recontract Sprint would cost us MORE money monthly. If we keep contract-less we pay the old rate. (until they change that, which they might).

Switching means activation of two phones on a family plan.
But my friends have switched to AT &T and my son is on it so free talking with them is becoming attractive, along with the
roll over minutes, etc.

Decisions, decisions! always something new to figure out!