Luke’s latest is up:
You are correct that for this debate I would like to contrast the explanatory merits of metaphysical naturalism with Christianity, not Christianity with other theistic theories.
I still think that even if theism were proved true that other theistic theories would have a better explanation for S than Christianity does.1 That question certainly would make for an interesting debate! But it’s not the one I want to consider right now. I will probably refer to competing theistic explanations in order to illustrate some principles of explanation, but my case will hang on whether I can show that metaphysical naturalism is a better explanation for S than Christianity is.