The Kalam Cosmological argument.

[GUBU]

The appeal of logical arguments for the existence of God has always escaped me. Essentially they're just ad hoc rationalizations. It's not like anyone, ever, has decided to profess religious belief simply because they were convinced by a syllogism anyway. And it's not like anyone has ever lost faith because they detected weaknesses in such arguments either.

To my way of thinking if God isn't a living, actual presence in your life, then no amount of rational theology is going to make a difference. 

Incidentally, I've long thought William Lane Craig is a charlatan. I know he's the only living philosopher that atheists can name, but he embarrasses me. I saw him debate poor Sam Harris on whether there could be a secular morality, and all Craig did was repeatedly deny that Harris had made his case ---strictly on the basis that Craig was there to argue against it. He didn't even bother to move the goalposts, his refutation was that lazy.

I wouldn't call Craig a philosopher, a solipsist and narcissus certainly, but not a philosopher.