I never played GOW I or II, but the story in III is easy enough to follow...
Ryan was correct in his assessment of Kratos, he is a major dick..
Haven't finished it yet so it may be important for the story arc, but I would have preferred some type of decision making tree branching system of morality...be good or bad Kratos and let the decisions guide where the path leads rather than be a Dick for Dick's sake and extol your Dickness in every Dickheaded decision you make. Granted the developers want Kratos to be a certain way to fit their story, but I get pulled out of the immersion when
There I said it :)