I'd say the worst one is "God can make a rock that he himself can't lift", implying that the Monotheistic God is a Finite being rather than Eternal and Omniscient.
The second scenario will inevitably bring more problems. Humanity hasn't learned how to move past violence, discrimination, and ignorance. Kill those three first, and I'll consider that option.
That's something you honestly have to find out. There are people that embrace it, leave it, insane enough to make one, etc. Humanity can bring benefits or harm towards anything and that includes faith.