Who has more morals? Atheists or hardcore Christians?

Depends on what you mean by morals. Skipping that, I'd say they're equally infected by irrationality. The Christians believe in immaterial minds. The atheists are sometimes right and sometimes far wrong in regards to their pictures of reality, minus the God issue, based on trying to synthesize conflicting data. The hard problem of consciousness poses a problem for physicalists, and there are those who are willing to sit with that and then there are those who are not. Not to mention the Marxists and deconstructionists. Marx believed in reason but his system does not seem to function well in practice. That is a mark against it, but then there are the analyses themselves, and if you follow the money, you get a grim picture. But atheism is, as the foregoing should suggest, divisible into various camps, who hold to atheism for different reasons. So many of them these days accept unreason as a structural or governing principle, not realizing the evil this is liable to generate, and inevitable, given time.