Acording to GL it is true that vader > any ancient sith being the 2nd most powerful sith lord in the galaxy, several novels pointed it out
Great..
So he was the second most powerful sith out of a whole order of sith lords consisting of two whole sith. 😱
Seriously Kadesh, this argument is very illogical, how does being the second most powerful sith at the time make him the second most powerful ever?
For gods sake in Empires end the ancient sith saluted vader by building a throne for himProof? They asked palpatine "Emperor of numberless worlds , Lord Vaders throne lies empty, have you come to take his place?"
And that proves that they built a throne for him? OK...
All that proves is that Vader had a throne, I don't quite see what you're seeing, where does that indicate that they built a throne for Vader.
This exact quote pretty much closes any cases you assume that it is force potential"Darth Vader was believed to have had roughly 80% of the strength of the Emperor. Had he sustained none of his injuries on Mustafar he would have been twice as powerful."
The keyword is strength of the emperor
1. Where did you get that quote from? Not that I can't work round it, but I don't think the quote exists, 'it was believed that he had roughly 80% of Sidious strength'? That doesn't sound right, something like GL factually stating that he was 80% of Sidious, or saying that 'it was believed that he was very close to being as strong as the emporer' would sound right, but you're telling me that people in the SW universe actually believed that he was 80% of Sidious? Who would believe that in that way? People would actually think that he was 80% of Sidious? Who would know enough about the two of them to give a direct figure that compares them like that?
It just doesn't sound right, I'm sorry but if you got it from wookiepedia, I'm not believing it. The quote that you just provided is completely different to the one Lightsnake did, and Wookiepedia has been known to be unreliable, given the fact that anyone can edit it, there was even a wookiepedia administrator at SW.com who was telling us that it was reliable about 70% of the time, but unreliable about 30% of the time. So can you please give me your source?
2. Keywords = 'was believed'. As in, it was believed by people inside the SW universe, who are 100% fallible, and who might not necessarily understand exactly how strong Vader and Sidious are in comparison like we do.
3. Even if that quote is correct, and even if it was directly coming from GL, GL most likely would be referring to force potential; he wouldn't assign a figure to represent combat prowess, it's not something that can be mathematically calculated, force potential on the other hand can, thanks to midi-chlorians. 'Strength of the emporer' doesn't change that.
4. Even if the quote exists, and came directly from GL, and works your way, this is RotS Sidious that it is referring to (is it not?), who is not the most powerful sith lord ever. He only becomes that by DE.
5. You seem to be of the belief that RotJ and even RotS Sidious is the most powerful sith ever. This is not the case, it has been proven that others are more powerful, all the arguments supporting that they are the most powerful have been flawed and disproven. Sidious only becomes the arguably most powerful sith ever by DE, but it's not like he's leagues above everyone else. Nihilus himself is imo, stronger, and Bane, Exar Kun and Revan are all likely pretty close to him too.
Thats G-canon and it rules out vader is the second strongest sith lord in the galaxy, Remember this is 80% Of rotj sidious whom is stronger than ROTS sidious, that means vader would be 90-95% of ROTS sidious who was already declared the strongest sith lord in history(sorry to keep repeating this)
Most of these points have already been covered, but where did you get from that, that it was RotJ Sidious that was being referred to? It seems to be speaking in respect of the time shortly after the Mustafar incident.
But even if the quote works your way, and it refers to RotJ Sidious, RotJ Sidious is still not the most powerful sith ever.
And therefore with G-canon, vader > exar kun
I'm sorry, but no. Firstly, you'll need to prove that the quote is genuine, and then you'll have to work around the many flaws I pointed out in your argument to have a case. You won't be able to, your argument is flawed, Vader is not as strong as you think he is.