Antvasima said:
We will need specific proof for scaling them to each level, and cannot give characters far higher ratings based on your personal opinions/preferences regarding that one of them should be a specific amount enormously superior to another.
Tenebrous, Plagueis' master, was regarded as one of the "chief architects" of the Republic's Fall and the defeat of the Jedi Order. This Order of the Sith Lords created, with each generation, a Sith far stronger. Here is what Terebrous, Sidious, and Plagueis say about the Order:
"We are the select few who refuse to be carried by the Force, and who carry it instead. Thirty in a millennium, rather than the tens of thousands fit to be Jedi." - (
http://starwars.wikia.com/wiki/Darth_Plagueis_(novel))
Now, that being said, Tenebrous hated, despised his apprentance for their differences in views. Tenebrous believed that the Rule of Two should continue, while Plagueis believed that the Rule was over, and the two Sith should work together in all that they do.
When Sidious became the Sith Lord, "A Tremor took hold of the planet. Sprung from death, it unleashed itself in a powerful wave, at once burrowing deep into the World's Core, and radiating through, it saccharine atsmophere to shake the stars themselves." - PG 1, Plagueis. Sidious has just killed Plagueis and inherited all of the Dark Side energy that Plagueis had taken from Tenebrous and every Sith Lord before them.
Plagueis was called, by the one who hated him the most (Tenebrous), that he was "the grand design of the Order of the Sith Lords, greater than any who came before them" this includes knowledge of Sith Lords like Exar Kun, Ragnos, and Lord Vitate. How do we know it contains Vitate?
Sidious and Plagueis has a talk about "The Lord Vitate, who could drain a planet of life"
This means that, 30 years BEFORE REVENGE OF THE SITH, before Anakin fought Obi Wan, before Sidious destroyed the Republic, Plagueis was superior to Vitate.
This means that Sidious should eclispe Vitate by a *much* further amount. Does this make sense to you?