I would go BB10 or Sailfish.
Came from iOS, walked away and will never go back to iOS.
I dislike Android.
BB will be the only choice.
(IIRC, Meego was releasing a new OS version?)
I had forgotten Sailfish. I could probably do Sailfish, since its supposed to be able to run like 90% of android apps with no modification, you don't have the lack of app growing pains AND its not Android. So, it would either be Sailfish or iPhone 5