I've had AT&T on my iPhone previously. I had to have a microcell to get single in my home. I live in Mableton by the Comet Trail. I left AT&T and went to VZW cuz of the 4G. I still only get 1-2 bars at home. I also have unlimited data. Even though I don't care for VZW, their unlimited 4G is truly unlimited. There's no throttling.
I take my 4G sim out of my phone and use it only new VZW iPad 3. Right now I'm two bars laying in bed. I couldn't be happier. I think VZW is above AT&T and that's something for me to say.