speeds being great where you live is awesome and obviously most preferred form of performance. nonethless, nationally, tmo is still a clear third in coverage overall. it's lead in speed is due to the the fact that where it is fast, it is blazing fast. I dont have verizon but i know from the engineering data, it still is technically the best network (nationally).
people who move around a ton probably dont favor tmo or sprint much. its like having that M3 but when youre at your clients office in rural Raleigh (example) you strap chains to the wheels add a 2 ton block of lead to the backseat and drive it like that. some people need the all around performance year long.