But really HOW MUCH stronger is the question. And werent you just saying (and the quotes for RotJ Sidious even) still has RotJ Sidious > all Sith before. Which would mean even if this was the case Vader would be 80% of Sidious in RotJ who by the other quotes is still > Vitiate or any other sith. Are Luke and Sidious REALLY so much greater then EVERYONE.... I guess thats a possibility.