1) How do we know God is greater than anything else? Before we have proof of God, we are incapable of defining him.
GOD is creator, sustainer, and destroyer. GOD exists outside of the naturalistic schema, so a naturalist cannot conceive of a creator but that does not prevent a proof by analogy.
The basics were already explained here:
https://www.near-death.com/science/evidence/people-have-ndes-while-brain-dead.html#a05
2) Why should a real God be greater than an imaginary God? I can imagine perfection, but I have yet to encounter it in real life. I would argue that imaginary things are often better than their real world counterparts.
Imaginary things are fictional, they cannot explain the creation and sustenance of the natural world.
Godel's argument uses flawed assumptions, and the German programmers used those same flawed assumptions
How do you know that? Is there an expert who has made these same arguments that you just put forth? I referenced some experts myself, but you are not willing to make a decent argument since according to you, a made-up ad-hoc argument is arguably even better!