I liked Missing Joseph, too. I've read some Morse, but I found him Classist. I lived in England for 5 years, so the issue was alive to me. There were one or two Lewis episodes I watched, but then it disappeared (I live overseas, so it might have been one of my moves or the vagaries expat TV).
In some ways, Elizabeth George had the same problem as Janet Evanovich -- she created a compelling set of characters and then ran out of interesting and believable events for their lives.