AT&T does not use CDMA. They are a TDMA carrier as we are(Cingular). Both Cingular and AT&T are doing a conversion right now to GSM. We are doing an overlay here in our TDMA markets so we are also running GSM now. We actually had to carve out spectrum to make room for the GSM. We had about 40% of our coverage as GSM before we started to convert. As for Motorola phones being the best, thats really just a matter of personal opinion. I can tell you they are not the major supplier for switches and radio equiptment these days. From my point of view they seemed to have put all their eggs into one basket with the Iden technology and GSM. We currently are running Ericsson TDMA and Lucent TDMA networks, and are in the process of installing NOKIA GSM networks.
But I digress... This thread really can open a can of worms. "the best" is really a matter of opinion and preferance. You will find people who love whatever carrier for whatever reason. You just need to find one that works in the areas you travel the most. Every carrier has strong points and weak points. While this may not help you in any fashion, I believe the more information you have the better choice you can make. If there is anything specific you want answered PM me and I will try my darndest to answer it of find an answer. My knowledge is mostly based on what we are doing here in the southeast and on the technical side, as I am not a sales person.