A person would have to be hard pressed to come up with a bad scene by Michael. The first thing that came to my mind, was the initial meeting with Senator Geary. This scene set the persona of Michael as being someone that was to be reckoned with. Of course the scene where he plans the murder of Sollozzo and McClusky, is proably the most pivotal scene. It shows his transition from "nice college boy" to up and coming don.