None of these would hit harder than Vader mocking his adversary for being a Sith and a Skywalker.

^Indeed. 2 Darths who are also Skywalkers fighting and insulting each other would hit too close to home for me.

Darth Caedus vs being retconned and being forgotten forever.

I'm sorry fellow Legends fans, but I view Denningverse as basically retconned and gaslighted most of prior Legends stories... all to force a situation where the authors could cause a character like Qui-Gon Jinn to suddenly become Anakin Skywalker/Vader 2.0

To me Denningverse will always be a separate timeline from the rest of Legends.

No insult taken m’lord, entirely why I want Vader to wipe the floor with him. That booming deep voice of Jones mocking him the entire time.