Verizon for 5+ years. Had the Droid for over a year, awesome phone...Recently upgraded to the Droid X2, and its ****ing amazing.
I have 3+ bars everywhere I go, and usually have full bars. 3g is fast as hell too.
The droids are made of some sort brick material, as they are indestructible. I dropped one over 8feet high onto a concrete parking lot, and not even a scratch.