I think we denigrate III too much. As SB pointed out, it has some pretty good scenes. Critics forget that I was based on the novel. II was a natural follow-up to I just a couple years after I. III was on its own. I think it did a good job of melding alot of variables together, filling in historical gaps and putting together a future for its characters. I & II didn't teach us anything. III did.
"Generosity. That was my first mistake." "Experience must be our only guide; reason may mislead us." "Instagram is Twitter for people who can't read."