I think it comes down to whether you prefer access to wonderful software; or are a fan of the best specs. Also the design of the phone itself.
I've never jailbroken, cos' the whole point for me is all the awesome apps available on the Apple Store. Lots of innovation and ports of full console games. Really sometimes makes me wonder, what's the point of the better Android specs, if they don't have all these wonderful apps to use them with? Maybe someone else with an Android can chime in for this. The one thing I can say about Android is the open-sourced OS allows for much faster innovation on that front (notifications, third party keyboards, etc etc). But these don't matter so much to me- my iPhone is like a personal entertainment device, and nothing beats the Apple Store selection.
That being said, the new Androids are faster, lighter, better screen, etc etc.
Design-wise though, I still like the iPhone. It feels like a real luxury item- solid. When I saw a friend's Samsung for the first time, it really shocked me with all that plastic... Personal taste, of course. I'm sure there are other phones that are different. (eg. the Sony ones look much nicer)
