J.D. Power released its second Wireless Smartphone Satisfaction Study for the year and continues to find Apple leading the charts.

While Apple has topped this chart ten consecutive times in the last five years, AT&T has proved it can maintain its lead in overall carrier customer satisfaction we reported earlier this year. Sprint, T-Mobile, and Verizon Wireless trail AT&T in customer satisfaction overall, but among iPhone users specifically Verizon is most prized.

When you break down customer satisfaction by carrier, Apple leads ahead of its competition on AT&T and Verizon while Samsung scores higher among Sprint and T-Mobile subscribers. Both Apple and Samsung score about the carrier average on each respective carrier they topped.

J.D. power notes that its study found Sprint subscribers were more likely to purchase a smartphone based on its features, while T-Mobile customers favored device cost in making their decision.