What tablet should I get?

[Uncle Albert]

Great graphics-Nexus 7. Has the largest game store and the best screen and graphics
Nexus 7 for surfing too
Movies-probably Kindle Fire, but with a Netflix subscription, you can get it on any of those devices
Play music-any of them, really
customize-Nexus 7. Jailbreaking sounds easy, but it's not. There are no current untethered exploits and there won;t be any for at least a year. Android, especially the completely stock version the Nexus comes with, is the holy grail of mobile device customization. There are millions of different combintations. Cydia themes are pretty low on stuff for the iPad, especially for the iPad mini, which is just released, and it will be quite laggy with them anyway, since it doesn't have as much RAM as the others.
HD screen-Kindle Fire has the best screen, but the Nook and Nexus are close behind (they are all a little over 200 dpi, with the iPad Mini as an exception at a lame 150 dpi)
thousands of thousands of apps-Nexus 7 or iPad Mini
Apps that work-for all of them?
Cards-I WAS going to say only iTunes- but apparently, Google Play has cards too! https://play.google.com/about/giftcards/index.html
Do facebook-all of them
front facing camera-Either Nexus 7 or iPad Mini

So all in all - Nexus 7!