Does God Exist?

[The Mikado]

Maybe is the only rational option.

No, the only rational option would be "Define 'God' and define 'exist.'" 

[The Mikado]

Can you really extrapolate something like Aristotle's Unmoved Mover into something you can call "God," given all the Abrahamic trappings that word (especially capitalized like that) has received?  The Unmoved Mover redefines "god" to its minimum possible definition: a force that set the universe in motion.  The Unmoved Mover is not necessarily eternal, is not necessarily omnipotent, is not necessarily omniscient...f**k, is not necessarily conscious or sentient and may be acting out of dumb instinct.

[The Mikado]

(no, ramblings of Gilded Age peasants don't count)

If you're going to call the overwhelming majority of people since time immemorial stupid for not following your theological views, you might want to make sure you know what the words you are saying actually mean before you do so.