Samsung Galaxy Tab 2 7.0 vs. Google Nexus 7?

[YahooAccount]

I am trying to decide which one to ask for, for christmas. I was 100% in with the Nexus 7, but then I found out it doesn't have a rear-facing camera, when the galaxy tab does. You can also expand your memory on the galaxy tab. But some people say the Nexus might be a littler faster and blah and blah and blah, it is just getting too confusing. Here are the things I would do on a tablet

-Go on Facebook, Twitter, etc.
-Play fun games like angry birds from the android market
-Browse the web
-Listen to music
-Carrying it around (being portable)

Some websites have the Nexus winning, when others have the Tab winning. Please help with my decision.