I liked the Letter of James. Franz' commentary was excellent.
Oh yeah, the Letter of James is a really good one too. One book that I have developed a special interest in lately is the book of 1 Corinthians. In chapter 12, Paul does a beautiful job in describing the congregation; or the Body of Christ. He likens it to the human body with vastly differing functions (nose, ear, mouth, eyes, etc). He tells Christians that they will serve different functions based upon their individual gifts and talents. Verses 4 and 5 in the Good News Translation state: "There are different kinds of spiritual gifts, but the same Spirit gives them. There are different ways of serving, but the same Lord is served." The rest of the chapter goes onto to expand on these thoughts showing that sacred service is something very personal, and is unique to different individuals. Chapter 12 shoots down the Watchtower's claim that all Christians are to serve in lock-step conformity and perform all of the same duties as prescribed by the organization headquarters. Paul's words make it plain that not all individuals would be evangelists. But then, maybe the apostle Paul was an "apostate" too.