My favorite is the sequence when Vito and Clemenza and Tessio are eating at Vito's apartment and his conversation with them about Finnuci.
If I had to choose one, this would be my favorite as well. Just watching the power shift from Vito being dismissed at the beginning of the conversation to becoming the leader by the end.
I think it's a perfect parallel to the scene in GF1 when Michael offers to kill Solozzo and McCluskey.
