I start on the skeptical agnostic side I guess.
If God was proved to exist it would be kind of a culture shock to me and most of the people I know and respect.
I wouldn't run off and convert at the nearest church though, not by a long shot. As far as I'm concerned he's still an amoral tyrant undeserving of the reverence he receives. That's just me though.
Also, I'd be pretty devastated that Eris doesn't exist.