I have an Iphone and my wife has a droid, ATT vs Verizon.
I love my Iphone, easy to use, almost no learning curve, helps in my business. The At&T network started out being ok to good but the last month is has sucked, constantly dropping calls. When I drive through areas of Texas where there is no service I sometimes have to shut my phone off and then on for it to pick up a cell again, sucks again. My business requires travel so I don't know if I will stay with them when my contract expires.
The droid, my wife hates, awkward compared to the iphone, more of a learning curve. Hangs up sometimes when talking when brushing phone against face. Service is great, she can browse the net while I can't even make a phone call.
The touch screen keyboard on the droid is better than the touch screen keyboard on the iphone in my opinion.