@Kingpin, IMHO every demonstration for the existence of God presupposes a philosophical framework. For example the logic of the 5 Ways are impeccable and the premises sound but it only works if you accept the assumptions of classical philosophy regarding infinite regress and honor basic distinctions between potentiality/actuality, etc. What tends to happen is the apologist defends the argument while to atheist goes meta to sidestep the argument, either to nihilism or their substitute god of the multiverse.
<insert profound quote here>