I'll go with charcoal. Not for some hippie reason like it's cleaner or better for the environment, or shit like that. Propane explodes, and charcoal doesn't. I'll go with the one that isn't going to blow me up before I have a chance to eat my food.

Because if for the love of God I do blow up before I eat my food, I'm going to be pissed, and I will probably shoot something.