IMO, The Muppet Movie is fantastic, but Great Muppet Caper and Muppets Take Manhattan are both guilty of being lesser products - I remember feeling that way in the theaters when they first came out, and I was a little kid at the time. They're not bad, but they are I think examples of diminishing returns, and Muppets from Space outshines Muppets Take Manhattan simply by having more heart.
Darth Vader is becoming the Mickey Mouse of Star Wars.
"In Brooklyn, a castle, is where dwell I"
The use of a lightsaber does not make one a Jedi, it is the ability to not use it.