Help Me Decide...Which game to Buy?

Next month im gonna buy 2 games for my pc. But I have more than 2 which I am interested in. Vote for your favorite and then maybe add a comment if ud like. Also feel free to recommend anything not on here

Well, my preference is Fallout 3 since that's the only one I've played and for that matter have been interested in playing, but really shouldn't it come down to the game(s) that you find most appealing?

Spend the money on some soap.

Loved Fallout 3 to death but my money would go towards Mass Effect 2.

I noticed they are all sequels. If you want longer playing time, get Fallout 3. If you'd like an immerse story, get Mass Effect 2.

Fallout 3 if you're playing solo

l4d2 if you have 3 buddies who have it and you can run around with.

If you don't already have the first, Mass Effect 2.

Left 4 dead 2, if it's for PC.