they are both amazing phones but i personnaly prefer the droid for multiple reasons
1. multiple phones to choose from (more personal, options for faster phones, options for bigger screens, faster phones)
2. option for a physical keyboard
3. real multitasking
4. the notification bar, which ios just got
5. open source os
6. open app market allowing releases quicker and other things that some might find "offensive" or "inapropriate"
7. widgets
8. live wallpapers
9. carriers (which this new iphone may solve)
10. with proper maintenance (trust me its really not that hard if you just google it) it runs like new
11. (not sure if it does now but...) flash support
12. no need for a computer (another thing ios5 is fixing)
13. more free apps
I am not a fanboy and have owned both phones and have loved them both and android has grown on me ever since i switched because of carriers and my parents frustration with at&t
and from what ive heard everyone really likes (at least) iphones but you either hate or LOVE your droid