Are there as many apps for the Droid as there are for the iPhone? I want a phone that will allow me to do away with my PDA, so need applications for bank accounts, grocery lists, appointments, addresses, games, etc. AT&T contract expires in November and I'm leaning toward the iPhone. Are the Droids less expensive?
TL;DR - Both iPhone and Droid are going to do what you want.
iPhone has more apps all together, simply because the store has been around since the iPod boom. They both have the "staple" apps Facebook/Twitter/Streaming Music/Calendar etc. There are more apps being added to the droid daily and a lot of the apps found only on the iphone have been/or are being ported to the Droid.
The iPhone does have iReef, which is a pretty cool app to control your Reefkeeper with the NET module. Not sure if the Android Marketplace has it or not, but it more than likely will in the future.
Droid is a pretty cool phone, I played with it for hours and found tons of stuff to keep me occupied. My favorite part of the Droid was the flash capability that the iPhone blocks. The iPhone has an app for pretty much every application that requires Flash, but it still doesn't beat being able to use a web page from it's URL instead of opening an app up.
I prefer the iPhone simply because it's a little smoother, and I feel that Apple does a good job with the OS. The OS is used on iPod touch, previous versions of iPhone and now the iPad. It's very user friendly, but somewhat locked down unless you jailbreak it:spin2:. I really like my jailbroken iPhone. Does everything I need it to do.
It's all a matter of preference, iPhone people will tell you that Droid sucks and Droid people will say iPhone sucks.
I have always had AT&T until the Blackberry Storm came out. The browser was extremely slow on Verizon (could just be the BB Storm?). The speed of AT&T is much faster than Verizon, but again, it could be from the BB Storm.
Coverage in Rochester is pretty much the same all around, we are pretty well populated with cell towers.