The best proof for God is what i like to call "The Argument from Cringe." It is similar to Lewis' argument from desire, that there is an innate desire in man for God, and innate desires always have a real object of desire to satisfy them.
The argument from cringe posits that the innate cringe emitted from all atheists at alarming frequencies is sort of like a form of aposematism designed to repel the good humans, the ones God actually wants, from becoming atheist for fear of looking like a retard asshole. It goes something like this:
>if there were no God, atheists would be right and wouldn't be cringe and bluepilled
>atheists are universally cringe and bluepilled (irrefutable)
>therefore God is real and he is based and redpilled
This is not ad hominem, it is right