If you're not gonna play online, then get black ops. Trust me, zombies is really worth it. If they made a game that was just zombies, i'd buy it straight away.
Special Ops is alright, but not as fun as zombies. Although it's probably better not to buy any of em and save up for mw3 which comes out in about 2 months.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.