Ron wrote: The AFE is a 'defeater' argument designed to show that there are internal contradictions in the theistic position. So while Lewis is correct technically, he misses the point that the AFE is concerned only with the rationality of the theistic position. The position of the atheist (or anyone else who uses the AFE) is not relevant. I think this is a mistake I've seen Christian apologists make.
VR: It is quite true that you can advance the argument from evil as a reductio against one's Christian opponent. What that entails is showing that as a Christian one must accept the moral premise of the argument (typically, a perfectly good being will prevent unnecessary suffering if possible, unless that suffering is necessary for a greater good), even though the atheist objector considers it subjective. But can you count on the Christian theist to accept that premise? Even if the theist accepts that premise in human contexts (and even that's not clear) it doesn't follow that the theist is inconsistent in not applying it to God.
In his debate with Keith Parsons William Lane Craig says that God is justified in ordering the Amalekites to be slaughtered down to the last man, woman and child, because God is the author and giver of life and therefore can take life as he chooses. Of course, Parsons found this shocking, and I personally find it counterintuitive. But I don;'t find Craig's position inconsistent. I don't see how an atheist can object to Craig's position without appealing to an objective standard that both the atheist and the theist share.
I've covered and discussed this point on here quite a bit, as the link should show.