Should I get Call of Duty MW: 2 or Call of Duty: Black Ops?

that depends, did you have call of duty modern warfare and were you good at it? if youre a newbie to call of duty, or just shooting games in general i suggest Call of Duty Black Ops over MW2. Theres a lot more balance to it. Modern Warfare 2s a lot less balanced and its easy to get **** stomped like crazyyy by a good team. It's a bit harder to crap on someone in Black Ops. BUT, you could wait a little longer for a call of duty game and get modern warfare 3 coming soon. I dont remember the release date, but it would be better if you got that one cause then everyone would be learning the game and generally just makes it more fun :D good luck sir.