Since, I have used Ipad and Tablet both so all I could say is if you guys are looking for some big screen and confused between IOS or Android then I would say, go for Android.
IOS does enable you with many features though it is secure it is costly and every time you feel to download something it would ask you for money.
In Android, it consumes fewer data and enables you with all the loaded feature and also it is less expensive likely to be Ipad.
So yes Android is the best option to go with.