Here is my list of the top providers. This is a dealers point of view since I sell all of these: 1. Voicestream 2. Nextel 3. Verizon 4. ATT 5. Sprint 6. Worldcom Verizon and ATT are almost tied. And Sprint might be ahead of them if you look at the services offered. Sprint is usually the first to offer new services and features. My boss actually would put Nextel ahead of Voicestream. And when Cingular is released later this year or the begining of next it will be around the Verizon, ATT area.