Like most movies, I like happy endings. Usually the scene which makes the movie happy is my favorite scene. In this case in the movie, Operation Finale, I enjoyed the end where Adolf Eichmann was captured. I also like when he is required to stand trial. The reason this is probably the best scene is because the audience always like to see the bad guy get caught.
In this case, Eichmann was one of the leaders of the Nazi party and he did a lot of damage and is responsible for killing many people in Europe that were innocent during the war. He caused a lot of suffering. When the Israeli team captured Eichmann, that would prove that their mission was well worth it even though it took place years after the war ended.