How should I spend my microsoft points?

I'm thinking about getting a 1600 points card and I can't decide what dlc to get. The games I'm tied between are L.A. Noire, Red Dead Redemption, Mass Effect 2, and Call of Duty Black Ops (already have first and second map pack). Besides Black Ops I have no DLC in any of the other games and I'm really not that big on buying the new map pack, but how is it? and what DLC would you recommend?