Verizon's coverage of what THEY CALL 3G is in most areas the speed of EDGE or lower. Plus, Verizon's network doesn't allow simultaneous voice and data.
I know for a fact that the Verizon commercial maps are wrong just for my state. I have personally verifiable coverage in a wide area around me - there is no blue whatsoever ANYWHERE close to me on the Verizon commercial maps. Furthermore - by my own experience - I cannot even get Verizon 3G in my area - but Verizon DOES SHOW 3G in my area with their red areas.