Android 4,0 or iOS

[Dr.BrokenGod]

But how you will explain to my cousins that Android is better. They use IPhone just to call people and play games.

Android is much better for games lol!
It can download multiple files at once and you can play a game while downloading. You have more use out of your Cellphones CPU and its much faster under pressure while if you have too many stuff in background on IPhone you start to lag while on Android you can have much more stuff running in background and still have a nice smooth playing of games or surfing internet!