im using nokia lumia 620...hoping to change to android back..not much apps in windows store..even there are they have many bugs!!so android is the best for me!

Android all the way.

I prefer Android over IOS when it comes to mobile phones. But for tablets I rather use IOS mainly for Hearthstone.

Android
Easy use
many functions

I think android is the best, because i can modify it

Personally I've never had a windows mobile phone before, I only saw it with someone very briefly, but I would say android is probably better since the available app/game amount is just huge compared to windows mobile not to mention also the support from software developers, you can always find support for your android and IOS on a lot of services but the same can't be said about windows mobile also android is highly customization and modification friendly, lots of potential there so yeah I pick android.
iOS is probably cool too it has all the apps/ games you need and its simple to use but its not highly modifiable as android.

I Always say to my friends.

The one you use is the best

Android because of interface , themes and the speed of operating system !

Ammm my vote is for ANDROID!!

It is an open operating system and any free apps.

Android. Its open source and based on linux