Debating the religious on a one to one basis is almost always an exercise in frustration.  The religious indoctrination often runs both wide and deep making finding a reasonable starting point extremely difficult.  What is beneficial is to listen to both sides advance their arguments and then deconstruct them to see who has the better argument and proceed from there.  William Lane Craig is a popular youtube christian apologist who regularly trots out a tired set of arguments for the existence of his sky-daddy of choice, the christian god.

WLC has a degree in philosophy but I do not think we should label him a philosopher as Philosophy, as mentioned in the video, is the search for truth and as WLC explicitly states, that search for truth has little interest to him.

Dprjones does a competent job of examining the arguments of WLC and showing why they are faulty and should be rejected by rational people.