There's no single character we really care about.
Michael has become a manager of a big company ("We need more lawyers.") We know already that he has destroyed his life and hopes. Who cares about the Immobiliare deals or whether or not he can fix his broken relationship to his kids and exwife?
Vincent is too simple minded to be a protagonist. He's a supporting character, but even Sonny's shoes are too big for him.
Sophia - even more naive than Fredo or young Kay.
Anthony - good singer, so what!


No hero, no real protagonist. Just a gangster movie.

Anyway, thank you Mickey for your thoughts and for stirring up the conversation about GF3.