JD Power gave a rare three-way tie for the top spot in customer support among US cellular carriers this week. Alltel, T-Mobile USA and Verizon all earned the top spot with each receiving a 747-point score out of 1,000 and a full five-star rating. Each scored well in different areas. Alltel fared best with retail support, while T-Mobile was best in getting customers to live phone help and Verizo
