It just annoys me how little we saw of Fredo in these parts, he's an underboss and a son of Vito, he wouldn't have just been left out of these discussions, even though his opinion really wasn't worth shit to the other he;d have been there out of respect for being Vito's son.
On what in the world are some of these comments based. There is nothing in the novel or GFI that in any way indicates that Fredo was anything close to an underboss or anything more than a driver for his father.