Alrighty, this is the longest I’m comfortable with making the Vader duel. Obviously a lot of stuff is still unfinished, but it’s watchable at this point. In the moment, the viewer is meant to believe that Kylo’s greatest fear is not being as strong as Darth Vader, as stated in TFA. But, as we later learn in this edit, Rey is basically the same in terms of raw power as Anakin. So Kylo and “Vader’s” conversation in this scene has a double meaning, in that Vader/Palpatine is claiming they both know Rey is stronger than Kylo, and more worthy of the throne.
https://drive.google.com/file/d/1PNq604n2sbbK8_y4y0ws2MNVg6AOXffP/view?usp=sharing