Sequels? I think they went to far with numero three. Although that was the first one I popped in when I got the DVD set because it had been so long since I had seen it. It wasn't as bad as I remembered...just not up to par with the other two.
I think the first one has transcended good and bad. It simply is. Everyone who is a fan of movies needs to watch it so they may gauge what makes a great cinematic experience. With out the Godfathers, you wouldn't have the Goodfellas and the Casinos and the Sopranos. It's a linchpin in our popular cultural.