I'd say that the odds of the latter or the Christian God creating everything are identical...that is one of the qualities of 50/50. It works just like true or false, off or on, or black and white.
Perhaps you might explain why the odds between chance and creation should be anything other than 50/50.
It's cute to say that given any two possibilities there is a 50/50 chance. However in reality it doesn't happen like that. There is not really a 50/50 chance that Hillary Clinton or Paris Hilton will be elected POTUS. There is not really a 50/50 chance that the Green Bay Packers will be defeated by your kids grade school flag football team.
Regarding creation vs. chance. Chance is something we can observe every day. Creation is something we can observe everyday only if we believe in it.
Pork, good for you, bad for Muslims and Jews.
Matter maybe, but we are talking about organized, complex systems. Like molecules, planets, and living organisms.
Its like walking down the street and finding 1000 coins balanced on their sides. From your perspective, that could happen by chance. I would say that somebody set up the coins that way.