And I have to mention another thing. Many iOS users will disagree but still In my opinion the apps designed on Android are wayyyyyy better and more coherent than they are on iOS. There is no coherence in apps. Every app is designed differently. Which could be a good thing for some but not for me.
Having said that, they work better and smoother on iOS. There is very little stutter within apps. I don't know why.
So the looks goes to android (by a large margin). And performance (by a little margin) is better on iOS.
Do let me know if you feel this difference or not?