One of my favorite parts from the novel which is left out in the movie is Neri's background. It's very interesting, and a high point in the novel (compared to Lucy's 'problems').

In the movie, Al Neri kind of seems to me like an angel of death. Michael runs his empire, and Neri follows his order, regardless of the ruthlessness. Neri is definitely a badass throughout the trilogy. However, I would believe the most evil character to be Michael. He's the epic hero, and a vile creature who not only serves to protect his family, but also ends the life of two relatives. Sure, they had it coming but come on.

Michael is such a contradictory and that's what's so fascinating about his character: the good, and the bad.