I would be interested to see a sketch of the evidence in question for atheism. (Not so interested for utilitarianism -- values versus facts.)

But if the point you're making is an instance of the general schema "there is evidence against almost anything, and if you collect just the evidence that goes one way you can often make it look quite convincing" then I agree, but plead guilty only to not wanting to weigh my comment down with hedging. One of the things I meant by "good reasoning" was not doing that :-).