RDR is pretty cool but it's gotta be CoD4, it's influence on this generation of gaming (love it or hate it) is outstanding. It has basically created the model for modern FPS games.
As for Dark Souls lolno, it's basically an expansion pack to demon souls. The combat is kinda cool but games like Mass Effect had just as good combat but it actually had story. interesting characters and an immersive world.... dark souls is just a big bland ball of gameplay. Cool game but Demoms Souls isn't even top 10 of the generation let alone Dark Souls.
Only respect for Chet Atkins but that's only because he was a beast on the guitar so I respect his skill level (in terms of finger picking) not so much his songs. And possibly Johnny Cash (though I saw him more as folk than country)