Demon's Souls is absolutely fucking awesome ad you should get it, especially if you pride yourself a hardcore gamer (I better not see a thread whining about difficulty later on though).
MGS4 was extremely hugely, disappointing. I felt liek it wasted my time. If Kojima wanted to be a director he should have stuck to making movies, then again I understand why he didn't, no one in their right mind would give him any funding. That said, if you can tolerate huge amounts of bullshit and crap, 9-10 hours of it in fact, then go ahead and get it because the gameplay was a bunch of fun.
FO3, and DA:O you shouldn't bother with. Get them on PC where they are better in every form of the way.
RDR is also kind of pretty awesome, I just don't think it's as awesome as DS. SO if you are into open worlds then get this.
MNR kind of disappointing.











