In this neck of the U.S. (central to south Alabama), people seem to struggle more frequently with T-Mobile, though I can't say they have actually checked throughput and ping times. :bigsmile:
Personally, I go home, and my service with Verizon gets a lot more sketchy. There are a few more trees back home, and I'm not from the largest city, but my Droid X definitely got hot trying to keep a strong signal, and the Alias I've had to revert to lasts a little less time between charges. Still, it hasn't failed on me (most problems have been quirks of the phones themselves).