I've tried Android and iPhone and don't particularly want to return to either one. The former because of too many apps that want all the permissions under the sun while the OS offers a complete lack of fine-grained controls of them[1], and a subpar UI experience (subjective, I know). The latter due to lack of control without rooting it. My windows 8 desktop experience has spoiled that OS for me on a phone, fairly or otherwise.
But it begins to look like I will have no choice very soon. I hope they manage to pull out of this - they're still releasing a new flagship, and have other irons in the fire - but it's not looking good.
[1] as in 'yes, let the app get to GPS, but no do not let it get to my personal data or phone info'. Something BBOS legacy offered, and BB10 only slightly less - when you make an app you were expected to plan for the user to deny functionality and degrade nicely.