I agree with what an earlier poster said about using the right tool for the job. I've owned both and Android works better for my use case. Android makes it easier to do the most important thing I do, which is DRAG AND DROP. I downloaded John Carmack's QuakeCon 2012 speech my home PC to listen on my S III at work. On the iPhone, it would have taken me 20 minutes to load up iTunes, sync what apps and music I forgot I downloaded on the phone to windows and vice versa, create a folder to place the video, put the video in the folder, tell iTunes where the new folder is, and sync the video. On my S III, I just plug it in, open the phone's SD card drive, open Downloads in Windows, and drag the damn thing over in 2 minutes.
Same thing at work. If I forget to bring my flash drive to work with me, I can just plug in the S III and copy over what files I need to work on 5 minutes before I have to leave. (Normally 200+ MB spreadsheets, so e-mail is out of the option.) I could never do that as quickly and easily on an iPhone as I can on the S III.