I continued to explore the exhibit, spending time examine the two Fetts, Boba and Jango, as well as a selection of senators from the prequels, and then arrived at a costume which it would seem Lucas was particularly proud of: the Darth Vader created for Episode III, Revenge of the Sith.
It is well known that Hayden Christensen, (Darth Vader in Episode III) was a full six inches shorter and leaner and more slender than David Prowse, the original Darth Vader, who was 6 foot, 6 inches, and built like a brick [out]house.
I had seen a proper Darth Vader costume at the Disney-MGM Studios which was, while not screen used, made from the film suit patterns for use in the park (I write extensively on theme parks’ bad practice of presenting replica film artifacts as authentic, although in this particular case, Disney did not do that). My point is that I knew how large and imposing Darth Vader was and is, and seeing Christensen’s suit in person wasn’t that.