If we had a zombie-pocalypse (I know, too much tv lol) but if we did and you ran across 2 camps... one that were identified as Christian in which their people believed that their actions would be judged in an afterlife as a base for their morality vs the other camp of atheists that didnt believe in an afterlife... which camp would you immediately choose to live in as a permanent resident to find a spouse and raise a family? 

Which one has clearly outline laws that arent just on paper but woven into the fabric of their existence? 

Which one is going to get things right closer to the way modern society is today?