Wireless Service Provider Trends: T-Mobile has been closing the gap on Verizon's lead in our surveys over the past three years. The latest results show T-Mobile has now moved into the top spot in overall customer satisfaction, loyalty, and preferences among planned switchers. Verizon still leads in satisfaction with coverage, reliability, speed of network and streaming video quality. But T-Mobile continues to challenge the status quo by pressuring the competition with non-traditional offerings while remaining sensitive to price. The survey of 4,125 primarily North American respondents from 451 Research's Leading Indicator panel looks at key wireless industry trends -- including data plans and usage, as well as the impact of T-Mobile's One unlimited data plan.