I've been looking at some of the Christian comic books/graphic novels, and have actually read (and liked) the following:
Spirit Warriors: this is a black-and-white GN that features a group of teens fighting evil forces, using the power of prayer and a lot of God-given, non-religious abilities. One of the best points of this title is the use of some unconventional characters, including one fellow who may be confined to a wheel-chair who is far from helpless. A couple of the Spirit Warriors look at first like the kind of guys you wouldn't want to meet in a dark alley, but turn out to be decent sorts after all. The only real problem I had with the book is that some of the action is confusing -- it's a little difficult to tell what's going on in a few panels, and the book has several lengthy sections with no words. I've only read the first volume, but I expect to pick up the second and third soon.
The other series I've read are the Eye Witness graphic novels. I really like this series, as it deals with an archaeological find that sheds new light on the gospels. The first volume is
Eye Witness: a Fictional Tale of Absolute Truth; the second is
Eye Witness: Acts of the Spirit, and both are written by Robert James Luedke. Two archaeologists are called to Israel to decipher a text that turns out to be a commentary on the life of Jesus. The narration of the ancient text takes us back for a look at the crucifixion and the events leading up to it. In the present, there is a plot afoot to cover up this mind-boggling find and make the two archaeologists "disappear". Kudos to Luedke for his believable and sympathetic portrayal of Judas (yes, that Judas) that doesn't make the guy sound either totally evil or like something out of the gnostic movement. Both books have a lot of exposition in which characters explain backgrounds or concepts, but I personally found that that added to the story, rather than detracted from it.
A couple of other Christian GNs that I thought sounded interesting but have not yet read:
Marked, by Steve Ross;
David's Mighty Men, by Javier Saltares; and
David, the Shepherd's Song, by Royden Lepp and Darren Brady. If anyone has read them, I'd be interested in hearing your impressions of them.
Veering slightly off-topic, there's a series of DVDs that may someday make the transition to graphic novels,
Angel Wars. Again, not something I've seen myself, but a young fellow in my local Christian bookstore pointed them out to me, and they look interesting. (I gravitate toward books that use angels as actual characters. Frank Peretti did some of that in his
This Present Darkness and
Piercing the Darkness. I must say that I disagree with his portrayals of Catholics in these books, but that's only a minor portion of the novel.)