I'm looking for the least dropped calls, but more importantly fast and reliable data downloads which extends to the smaller towns in the area.

Right now I have AT&T and it sucks. I'm not sure if my phone is acting up or that there is a huge difference between the 5 bars I used to get and the 3 bars I regularly get now.

Sprint seems to be the big carrier in Corpus...
I've had it since 2002 and haven't had major problems with dropped calls or anything. The 3g seems to be sucking lately, not sure if something is going on there.

I'm just north of you with AT&T. When the service is there it works fine. Here in Eagle Ford areas it's not the coverage but the capacity that is the problem.

I have no problems with verizon.