I just finished Prince Caspian.  I'm on to The Voyage of the Dawn Treader.  I knew going into the Narnia series that had many allegories to God and Jesus and the Bible and all that good junk.  So far, I think I've done well to gloss over all that (I'm an atheist) and just look at it as a fantasy series.  The thing I'm most bothered by (besides the boys getting to fight and the girls sitting on the sidelines) is the characterization of Susan.  I think it was wise of CS Lewis to have a hardcore skeptic amongst the four kids.  But the way he writes her and the others reactions to her makes her out to be the bad guy a lot of the time.  It's obvious that Lucy and Edmund are the real believers and they have a connection because of that.  And in one passage, Lewis writes that Lucy is Peter's favorite sister.  What kind of thing is that to say?  So the three of them are a group and Susan is the metaphorical third wheel?  I feel like Susan is going to be made into a pariah if/when she shows up in the last three books.  I liked her characterization in the movies much better.