MM, I appreciate you taking the initiative, but I don't think this is a very interesting idea for a countdown, especially since there is already so much confusion over what constitutes a sequel. I could see this working better as a tournament, maybe. Or you could just declare The Godfather Part II the winner and move onto something better.
But if there's something I do agree with this post, its the need to move on. Cool idea, but is it fit for a list of an entire 100 films? Not really.