Best and worst arguments against the existence of God

[Tartarus Sauce]

I think you guys are making things a little more complicated than necessary. The best argument against the existence of any deity is that all arguments proposing their existence either fail to pass empirical demonstration or are by their very nature unfalsifiable. Those are the two logical criteria that lead people to reject beliefs in almost every other matter of an assertive nature, and it's patently simple to invoke for gods as well.