I'd be shocked, puzzled, and probably let down if I learned a God exists. All the...stuff...around us could maybe be presented as evidence for or against a god. But for me, it all seems to point very strongly against a god, to the point where to believe would be intellectually fraudulent. Well, actually, that's not the term. I shouldn't post at 6:22am. Dishonest, I guess, suffices.
"For me, it is far better to grasp the Universe as it really is than to persist in delusion, however satisfying and reassuring." - Carl Sagan