Theists: What is the most compelling argument you have heard for Atheism?

[Mister Agenda]

Something has been made of what 'all the major religions' agree on regarding the origin of the universe. Of course, limiting it to the major religions as though it's a popularity contest doesn't sound like a sound categorization, but it conveniently excludes most of the cosmologies that don't involve a Creator. Except one. Buddhism is a major religion. The Buddha is supposed to have remained silent regarding 14 questions, which he regarded as traps of pointless speculation which would lead to irrational dogma. In any case, Buddhist temporal cosmology is complex, but doesn't involve creation of the universe by a deity, the universe is, however it came about, and it may be an eternal cycle.