Go, 'damn yourself'.

I'd say, "So Sam and Dean Winchester were right about you..."

"It's you! Wow! Let's have a beer!"

I know with every fiber of my being there is no God or gods. I do believe there are beings of higher knowledge in the universe that have been here in the past and may have hand in our advancement.

Amen to that, brother!

If that is what the truth is. god knows what is going to happen so what's the point?

Yes but what if he said "I just created you and gave you free will to do as you please. You created religion all on your own. "

I'd spit in it's eye, and take a swing at it for being such a passive/aggressive douchebag.

My answer would be the same as Stephen Fry's

You've got a lot to answer for, there, Bub.

You should’ve talked to us. Really. Don’t expect to be believedwhen you communicate in such a cryptic manner.

Not only "apologize", but explain. Explain things like disease, famine, allowing people like Hitler, Stalin, Dahmer, and the Conquistadors. I would also ask him why give us something as precious as dogs, and then take them away after only a few years? Why let complete assholes live, while killing good people? Basically, explain his amazing plan so that it makes sense, and explains the evidence (including his inconsistencies, hypocrisy, and the judgment of his creation).

Also, I would want to know if we were just one of his many "experiments", given the vastness and age of the known universe, and why he chose some of the odd methods he did for "making himself known" as the One True God.

God would have some shit to answer for...

I never asked to be created

How dare you judge me for being exactly the way you created me

I would tell him I'm not impressed.

That's a really big what if with a really, really small chance of being realized. Really! ?

Why would an omnipotent and omniscient god care? If I live life right and make good decisions for people around me and the greater good, he/she/they ought to be rather satisfied with the results. If not, then I'm owed an explanation.