On the right side, weighing in at 3.8 inches, the Apple iPhone 4. This sleek little beauty is running an 800mhz Samsung A4 with a 5 megapixel camera whose sensor is the same size as the Droid's (i.e., fewer, but more sensitive, pixels).
So who is the winner? The iPhone 4's camera, despite fewer pixels, is definitely better than the Droid X camera. As in, ridiculously good. On the other hand, the iPhone 4 is more tightly-walled than any previous iPhone. As in, jailbreaking it to run "unauthorized" software is ridiculously difficult. Given the way AT&T and Apple cripple the thing, that's a major problem. The iPhone's screen is too teensy for my not-as-young-as-they-used-to-be eyes. On the other hand, it also has the iPod ecosphere with it, and tight integration with my Macbook Pro, and all my current software will continue working with it.
The Droid X, on the other hand, is easily "rooted". Motorola has created their own ecosphere of sorts, with a car dock and charger, home docks, etc. so that you can do pretty much the same things as with the Apple ecosphere. It doesn't by default have any integration with my Macbook Pro, but a third-party program called The Missing Sync will do most of that. The big screen is nice for older eyes. But Android itself is ugly and clunky, though serviceable.
So who's the winner? Call it a draw -- for now. Which presents a problem, because my aging iPhone 3G really is not liking iOS 4.0, everything runs really slow and clunky. Maybe I ought to flip a coin... or maybe if I wait a few more months, the horse will sing. Hmm...