Best Gaming Tablet?

I know some of you may look at this like "A gaming tablet?" Casual games are okay on mobile phones for me, but tablets should have a bigger variety of console(and PC)-quality games. Sure, we have Gunner Z on iPad, as well as Shadowgun: Deadzone for both that & Android, but I sort of want more. Anyways, now to the choices.

Sony Xperia Tablet Z - Android

Apple iPad 3 - iOS

Samsung Galaxy Note 2 10.1 - Android (TouchWiz)

Google Nexus 10 - Android

Microsoft Surface RT (not the second one) - Windows 8 RT (Halo: Spartan Assault! Yeah!)

Asus Transformer Pad Infinity - Android

If you have any other choices, feel free to recommend them! As well as some games you feel are awesome (Dead Trigger, Infinity Blade, Batman: Arkham Origins). Thanks!