Well the proof of the pudding is in the two types of athiests.
One are people who have arrived at a set of conclusions based on the information at hand and their own analytical judgements.
The other is a band of people who:
- are elitists, craving a feeling of intellectual superiority, generally they were free thinkers up to a comfortable point where they don't wish to think about it any more.
- are Dogmatists, insecure in their atheism that they must defend it and MUST tell you about it
- Bitter closet thiests
Personally my belief There is no god and it doesn't make the slightest difference to anyone.
But it could just as easily have been "There is a god and it doesn't make the slightest difference to anyone".