the bottomline is there are 4 possibilities/realities:

1. there is a God and you don't believe in him - fail, non-believers are doomed
2. there is no God and you don't believe in him - meh.., the ideal scenario for atheists
3. there is a God and you believe in him - ok, safe side..
4. there is no God and you believe in him - still ok, at least you tried to have faith

I'd rather choose the 3rd or 4th reality/possibility, it's just the safest option in my opinion..