Obviously, I use AT&T to power my iPhone. I'm not saying that it's the best network out there (hello, dropped calls!), but it's the one I prefer to stay at in order to enjoy the Apple smartphone. What network would I prefer to be on? Probably Verizon — they really do have the best coverage and largest network on the market.
I recently read a story on Wired that reiterated this fact, and also pointed out that they may be the best network around, but they are at the bottom of the food chain when it comes to top-of-the-line mobile devices. T-Mobile is quickly moving up the ranks with their selection of Android phones, and Sprint is still in the game with the Palm Pre. This made me wonder — which cell carrier do you use?