Piano Man, I like that. I agree with Jerry and Bing.
I am trying to grasp of what El Goofball is trying to ask. Darth Vader throws the Emperor over the ledge because he is not strong in the force that he once was. Meaning if Vader wasn’t burned and put in the suit that limited his movement, he would kick his ass. Emperor could’ve left Vader/Anakin at Mustafar, but he got sick of tired finding and training new apprentices (especially Anakin, he was the One) and with Anakin/Vader being loyality to him, he saved him and made him the “face” of the Empire.