I have read most of the boring reviews — not surprisingly Gruber does the best job. Here’s the thing: if you have no problems with AT&T in your area then the AT&T iPhone is faster. If you need a hotspot right away, then best to get the Verizon phone as AT&T may not get the feature for a couple more weeks and AT&T still needs to support it. ((Remember how long it took them to support tethering?))
After reading all these reviews the only thing I can think of is: it must have sucked not to have lived in Seattle from 2007 until, well, today — Seattle has a damn good AT&T network in my testing.