Well if atheists are right we won't find out at all
This however poses an interesting discussion. (bit of topic)
1. How does the quality of life differs between - say an Christian and Atheist if any while alive ??
If atheist are correct - then basically we live our lives as we do, some poor,some rich,happy, sad. And when we die it all ends.
If Christians are correct - then the same as above except there are an afterlife. And in the afterlife you'll be judged for being an believer or non believer right ??
Now heres the thing - as a (atheist)non believer you basically gain very little in live apart from not spending X amount of time praying, visiting church, I'm sure you can add more etc.
But as an believer -
If you are correct - then you gain the afterlife and the non believers will go to hell

. And everybody will be judged, whether christian,muslim,atheist.
Maybe thats why so many people are religious - not because of logic but rather that they have little to lose and everything to gain by believing.
I'm not putting this here to start an argument // Please don't flame me
I just thought that it's interesting to look at religioun from that view point