at&t drops calls because while traveling, the device is connected to one tower (hard hand off) and sometimes gets interrupted by a millisecond of zero connection, hence a dropped call (GSM) thing I am told. With Verizon, you are connected to three towers, and when you travel, you remain connected to two (soft hand off.) Not a doubt Verizon is superior in that aspect. That said, Sprint 3g and VZW 3g speeds where I live are the same. I think VZW has better coverage than Sprint as evidenced by my first dead zone experience with the epic 4g touch. It is a freak of a phone, but if in my college, I get dead zones, what does that mean for clinicals in a brick hospital? Bottom line, Sprint is fast when on their network. I hope they keep it up. For me, I dropped the Epic Touch 4g (best phone I have used to date) and have decided on the Bionic. I need that coverage, and I almost had that with Sprint.
I give Major cred to Sprint. They were nice and customer service was first class. I also didn't give Sprint a fair run, one dead zone on one day is NOT any indicator. I am just to damn brainwashed and afraid to leave Verizon while my data and hotspot are unlimited. Besides, LTE is only 5 miles away. Should be here soon.