You know what, if I *was* going to criticize GTA V's story, this is probably exactly what I'd say, so... no argument here. Franklin was definitely the weak link.I know, but their relationship fucking sucked. How it developed sucked. It was rushed and artificial.
Never felt like Franklin bonded with anyone, including Michael, but especially Trevor. He worked with Trevor, but never trusted him. Same for Trevor about Franklin.
Michael and Trevor spent 90% of the game fighting. At the end, they suddenly reconnect.
Franklin was the worst: never felt like he had bonds with Trevor or Michael, had no interesting motivation, always an expectator ...
HIM, of all characters, getting to choose who lives or dies in the end is laughable
The C ending was disappointing to me and didn't make thematic sense, which is probably what you're getting act. The last act / ending as a whole was weak.