I'm not sure what an atheist sin is but what you're proposing is Pascal's Wager, Believing in and searching for Kryptonite on the off chance that Superman exists and wants to kill you.
It's foolishness.
Yet you're participating. I'm just asking what is worse (on the assumption that some judgmental god exists). Is it worse to believe and sin, or to not believe at all. There is no off chance in this particular scenario.And if you were a good atheist wouldn't you want what's best for mankind, a majority of which are religious or spiritual? Isn't it wrong on some level to not share that perspective within a community?
Which religions (that actually matter) have a creator who is not also the judge?
None that I can think of off the top of my head. However, mankind was not necessarily created to be self aware.
FIRST, you don't know where anyone is going because that's between God and the person. Also, I think being Atheist is worse because they look miserable. Every Atheist I've encountered gave off this smug vibe. Also, believer of what exactly? What's a bad believer? I have no issues with Atheist's, but I couldn't be one or be involved. Atheism is a religion in itself in my opinion because they believe deeply that there's a lack of proof of God. In my opinion, I feel that everyone needs some sort of spirituality.
This is a hypothetical situation. I'm not claiming to know (although I actually do because I've died before). It's a simple question. It's not a debate whether god exists. Assuming that a god exists and you're ass is going to burn in hell forever, would you rather have acknowledged a faith and sinned, or lived as an atheist.
There is no heaven in this situation. You're going to hell. Accept it.

unless you'd like to continue with your smart dumb shyt. You don't like the question so it's foolishness. k, bae. bye, then!
bring up god and nikkas can't focus on a hypothetical question. ISIS wins.