I liked Ebenezar when I first met him in Summer Knight, mostly because his personality is somewhat similar to Harry's. I also like the fact that Harry is actually respectful to him, and calls him "sir" when he doesn't do that for anyone.

When Murphy meets Ebenezar in Blood Rites, it's absolutely hilarious to see her stop, stare at Harry, and then immediately stop sniping at Ebenezar.