Cofty,
Nice OP, though I am glad the constant stream of x-tians who used to come on this site and state that atheists were immoral baby killers because without god they couldn't behave has subsided.
We still get them occasionally but when I joined 3 1/2 years ago it was a weekly thing. Numerous studies suggest a strong correlation between intelligence and atheism as well as intelligence and functionality (see Albert above). Apparently smart people figure out how to behave without the need for a god.
That x-tians and religionists can't figure that out slays me. But I suppose it shouldn't; numerous studies show a strong correlation between stupid people and religiosity, with a very strong correlation between evangelicals and dim-wittednees.