One argument is that atheists are more moral because they are making moral choices based on what is good and right for other people, instead of saving up their

One argument is that atheists are more moral because they are making moral choices based on what is good and right for other people, instead of saving up their virtue in a bank account in the sky to be cashed in on when they get to Heaven. That is, they aren't being good just because they think God is watching and writing everything down in a little book, they are really just being good. It's essentially the same argument that Karma is a moral cop-out: you should be good for its own sake, not because the universe is keeping score will reward you in this life or the next.