If you were totally given the option, unconditionally, would you rather go to heaven or to hell?
Atheists definitely invited to participate here...you can just speculate theoretically, or something...which actually leads to a second question: What if it turned out that hell DOES exist, even if God does not?
As I happens, the Dalai Lama has already answered this question, according to the Vajra Dakini Nunnery (which is in Maine). His Holiness says: "I would much rather go to hell than heaven. I can solve more problems there. I can help more people there."
And of course Buddhism does discourage the idea of a Supreme Being...anyway atheists and everyone invited to this Q!