Types of users
I think that theres no possible way to say that one of this OS's prevail other either because think that it really is dependant on what the user is planning to use the OS for. I think that more technical minded people (geeks?) such as myself prefer android because its open and gives me much more freedom as compared to iPhone OS whereas the iOS user may just want an os that merely "just works" and cannot be broken easily after a couple of app installs like on Android
