Originally posted by Dolos
Vitiate's strength was in alchemy.
Vitiate was great in many aspects. He was very strong in the Force:
The child who will come to be known as the Sith Emperor is born. Black-eyed, heartless, and supremely strong in the dark side of the Force. The boy seizes control of his homeworld by the age 13 and earns the title Lord Vitiate. (SWTORE, Page 16)
I think that Vitiate had very high Midichlorian count.
It shall be noted that Sith Alchemy was a popular subject of dark arts in ancient times. Same was true for Sith sorcery also. Therefore, it was logical for Vitiate to focus on these popular subjects and hone his talents accordingly.
Originally posted by Dolos
He had far more time to study the Dark Side than Sidious. His esoteric knowledge was superior to all other Sith Lords, which is perhaps his most miraculous feat of all.
Indeed! He eventually reached a point that he could pull of Galaxy busting feat with adequate preparations. No other Sith gained so much knowledge in the dark arts to pull off this kind of feat.
Originally posted by Dolos
However, Sidious' superiority lies within his pragmatism, and his ability to create monsters that he can exploit. In the Book of Sith he has explained that he knows the weaknesses of all beings he's manipulated through the dark side.
This talent wasn't unique to Sidious:-
More then 3000 years ago, a sect of Jedi embraced the dark side of the Force and used its power to manipulate life itself. Fearful and horrified by such an abomination of the Force, the Jedi Order banished these dark Jedi. The exiles lashed back in a century-long conflict known as the Hundred-Year Darkness. (SWTORE, Page 108)
More then 3000 years ago, the Jedi Order faced civil war. Through the Force, a group of powerful Jedi had learned to shape the very substance of life, shaping it into a new species, or fearsome but loyal creatures. (SWTORE, Page 146)
Exar Kun, in particular, was renowned for his proficiency in Sith alchemy. He developed an army of Sithspawn to aid him in his war against the Republic.
Vitiate also gained great proficiency in Sith alchemy. He could also create monsters; Akure, the Beast of Darkness is a prominent example. In addition, he developed special machines which could do the unthinkable; one such machine could transform a normal individual into a virtually immortal being; another such machine could prevent a living being from aging and dying.
Originally posted by Dolos
Vitiate's alchemic skills and knowledge are inferior to the likes of Plagues in certain areas. Plagues bridged science and magic to manipulate the midi-chlorians to the results similar (immortality) to the feats performed by Vitiate through rituals. Luke explains in that same book that Plagues fails perhaps because he'd not achieved a certain level of oneness with the living Force's dark persona.
Have you read
SWTOR: Revan novel?
How do you think Vitiate transformed Scourge into a virtually immortal being?
"THE RITUAL IS ABOUT TO BEGIN," the Emperor intoned.
Scourge nodded, though even if he had wanted to refuse it was far too late now.
He was standing in the center of a cylindrical metal platform roughly two meters across. Dozens of wires and IV tubes had been hooked to his body. The wires were connected to several generators arranged in a circle around the platform, the IV tubes ran to clear vats filled with a strange green bubbling liquid.
They were still inside the citadel, but this private chamber was much smaller than the throne room. It was unfurnished and, apart from the Emperor, Scourge, and the infernal machinery he was hooked up to, completely empty. (SWTOR: Revan)
Originally posted by Dolos
Sidious saw that he could not match Plagues in that aspect, and if Plagues would fail to turn the Dark Side into a science, he should take only elements.
Turn the dark side in to science?
Sith alchemy involves coupling of scientific lore and dark side philosophy.
Originally posted by Dolos
Whereas Vitiate failed because he underestimated the Jedi,
He failed because of multiple reasons; betrayal being one of them.
The power of the dark side cannot be dispersed among the masses. It must be concentrated in the few who are worthy of the honor.
The strength of numbers was a trap . . . one that had snared all the great Sith Lords who had come before. Naga Sadow, Exar Kun, Darth Revan: each had been powerful. Each had drawn disciples in, teaching them the ways of the dark side. Each had assembled an army of followers and unleashed them against the Jedi. Yet in each and every case the servants of light had prevailed.
The Jedi would always remain united in their cause. The Sith would always be brought low by infighting and betrayals. The very traits that drove them to individual greatness and glory-the unrelenting ambition, the insatiable hunger for power-would ultimately doom them as a whole. This was the inescapable paradox of the Sith. (Darth Bane: POD)
Scourge betrayed Vitiate and the latter suffered immense setback due to this.
Originally posted by Dolos
and where the Sith before him failed because they could not overpower the entire Jedi and Republic, and where his master failed for believing he could make it a simple empirical science, Sidious succeeded for being practical, for wanting results, for being more clever, calculating, and more aware than any of them.
Yes, Sidious accomplished the objective of RoT lineage with his genius and skill. He is a top-tier Sith for multiple reasons. However, you are overlooking the role of ancient Sith in setting the stage for arrival of Sidious through RoT; Bane and Revan (indirectly). Bane was very intelligent as well and he CHANGED the tactics to deal with the threat of the Republic; he CHANGED the Sith.
As pointed out here:
The Sith had changed. The Sith had grown, had adapted, had invested a thousand years' intensive study into every aspect of not only the Force but Jedi lore itself, in preparation for exactly this day. The Sith had remade themselves.
They had become new.
While the Jedi-The Jedi had spent that same millennium training to refight the last war.
The new Sith could not be destroyed with a lightsaber; they could not be burned away by any torch of the Force. The brighter his light, the darker their shadow. How could one win a war against the dark, when war itself had become the dark's own weapon? (ROTS Novelization)
Brief history:
The first great conflict between the Republic and the Sith Empire occurred when two hyperspace explorers stumbled on the Sith worlds, giving the Sith Lord Naga Sadow and his dark side warriors a direct invasion route into the Republic’s central worlds. This war resulted in the first destruction of the Sith Empire—but it was hardly the last. For the next four thousand years, skirmishes between the Republic and Sith grew into wars, with the scales always tilting toward one or the other, and peace never lasting. The galaxy was a place of almost constant strife: Sith armies against Republic armies; Force-using Sith Lords against Jedi Masters and Jedi Knights; and the dreaded nomadic mercenaries called Mandalorians bringing muscle and firepower wherever they stood to gain.
Then, a thousand years before A New Hope and the Battle of Yavin, the Jedi defeated the Sith at the Battle of Ruusan, decimating the so-called Brotherhood of Darkness that was the heart of the Sith Empire—and most of its power.
One Sith Lord survived—Darth Bane—and his vision for the Sith differed from that of his predecessors. He instituted a new doctrine: No longer would the followers of the dark side build empires or amass great armies of Force-users. There would be only two Sith at a time: a Master and an apprentice. From that time on, the Sith remained in hiding, biding their time and plotting their revenge, while the rest of the galaxy enjoyed an unprecedented era of peace, so long and strong that the Republic eventually dismantled its standing armies.
But while the Republic seemed strong, its institutions had begun to rot. Greedy corporations sought profits above all else and a corrupt Senate did nothing to stop them, until the corporations reduced many planets to raw materials for factories and entire species became subjects for exploitation. Individual Jedi continued to defend the Republic's citizens and obey the will of the Force, but the Jedi Order to which they answered grew increasingly out of touch. And a new Sith mastermind, Darth Sidious, at last saw a way to restore Sith domination over the galaxy and its inhabitants, and quietly worked to set in motion the revenge of the Sith … (SWTOR: Revan)
Sidious was a Sith mastermind but not the only one in galactic history. Their were more; Vitiate; Revan; Bane. Sidious rose to power under very different circumstances then the others. Revan and Vitiate were felled by betrayals. Bane also proved to be a genius and he set the stage for arrival of Sidious.
Originally posted by Dolos
Sidious was the smartest, he would find a weakness in Vitiate.
Both were very smart. However, I don't understand that how Sidious would find a weakness in Vitiate in just one meeting?