Mobile Game Cross Platform Development Tools

So I want to make a cross-platform game for mobile devices...lots of choices ...

• Xamarin (Monotouch)
• LibGDX + Monotouch
• Cocos2d-x
• Unity 3d
• Shiva 3d
• Corona
• JUCE 
• Marmalade (Airplay SDK)
• HTML5 + JavaScript
• JqueryMobile
• Cocos2d-HTML5
• Sio2
• Adobe AIR

Bonus link:

Setting up Cocos2dx on Mac OS X:
http://gamedev.stackexchange.com/questions/28743/how-to-setup-cocos2d-x-android-under-mac-os-x