answer:I have had T-Mobile, since 1998 when it was VoiceStream. i have been a loyal customer to T-Mobile because of many reasons, but mainly a live voice when i call their 611 number. T-Mobile is very customer-oriented and it shows in their evaluation by Consumer Reports Magazine. T-Mobile is the No. 2 mobile carrier in the United States. T-Mobile also has a heart, compared to some other carriers that do not. we had a death in the family and our minutes were just about to end with all the phone calls we had to make to the family members and funeral arrangements. i called and explained my situation. T-Mobile gave my wife and i both 50 extra bonus minutes at no charge. they did not have to do this, but its the little things that can make a big difference and T-Mobiles concern has kept us a steady customer. In the early days of T-Mobile, many areas of the United States suffered from lack of coverage. wife and i have suggested new locations for transmitting towers and T-Mobile actually listened! I will stay with T-Mobile. i have only had T-Mobile, since my first cellphone, so i really cannot give a comparison to the others. and no, i do not work for T-Mobile, but we are their second best loyal customer in longevity.