THE STING was an absolute masterpiece! I loved that movie when it was in the theaters in 1974. I loved the movie when it was re-released and I got the movie on VHS and later on DVD.
THE STING II was, by comparison, a dismal disappointment. While watching THE STING II, I tried to imagine what the movie would've been like if we had Paul Newman and Robert Redford in the starring roles. With their acting skills, their unique chemistry (they just seem to complement each other), and their influence on refining their roles, the movie would had been much better. But it still would've fallen short of THE STING.
But on its own merit, it was really a pretty good movie. If you take a moment to forget about Paul Newman and Robert Redford (who together ignited a chemistry that made them so likable, even as "bad guys" as they did earlier in BUTCH CASSIDY & THE SUNDANCE KID), you have Mac Davis, who was a good actor, back on the silver screen after his previous movie which was quite successful. And you have Jackie Gleason, known as "the Great One", a name that was very well earned.
But in THE STING II, Jackie Gleason and Mac Davis were definitely cast in the wrong roles. No matter how great these actors were, they were not and could never had taken the place of Paul Newman & Robert Redford.
On the other hand, Paul Newman and Robert Redford could never take the place of Jackie Gleason and Mac Davis.
Try to imagine Paul Newman portraying Ralph Kramden on THE HONEYMOONERS or try to imagine Robert Redford trying to sing "Baby Don't Get Hooked on Me" and you'll see what I mean!