Darth Sidious In the end, Vader managed to fulfill the prophecy tied to him. As for Darth Sidious, he's by far the most dangerous enemy Vader has had. Becoming emperor of the galaxy and crushing most of the Jedi was proof enough.
In the Star Wars Universe, it's hard to deny Darth Vader's greatest enemy was the Jedi Order. Sure, he had enemies such as Qi'ra, the Crimson Dawn and Doctor Aphra. But few came close to truly defeating him, other than Obi-Wan Kenobi and in time, his son, Luke Skywalker.
In Star Wars Legends and Canon, Galen Marek (Starkiller) is the only Jedi (other than Obi-Wan Kenobi) to put a beat down on Darth Vader/Anakin Skywalker. Galen was secretly trained as a Sith Lord apprentice to Vader, but returned to the light side and the Jedi.
Luke Skywalker
However, once Luke fully embraced his power in Star Wars: Return of the Jedi, he proved that he was indeed stronger than Darth Vader and struck his father down.
Erv Lekauf was a lieutenant in the Imperial Army who served as Darth Vader's personal aide for several years. On a mission to Vohai in 19 BBY, Lekauf helped Vader fight the Emperor's Hand Sa Cuis, impressing the Dark Lord with his courage and loyalty.
In the original trilogy, Palpatine is depicted as the Emperor of the Galactic Empire and the master of Darth Vader (Anakin Skywalker).
Originally a slave on Tatooine, Anakin Skywalker is a Jedi prophesied to bring balance to the Force. He is lured to the dark side of the Force by Chancellor Palpatine (Darth Sidious) and becomes a Sith Lord, assuming the name of Darth Vader.
1 Darth Sidious
There has been no Sith, as powerful, meticulous, nor as evil as the Emperor himself, Darth Sidious. As previously mentioned, Sidious trained in the Dark Side by Darth Plagueis before Sidious killed Plagueis in his sleep, making Sidious a Sith Master.
Master Yoda has risen above all others to claim the top spot as the most powerful Jedi of all time and the true chosen one according to IGN's audience. He won pretty handily as well, as he was victorious in 89,756 of his 95,243 battles and had a win percentage of 94.2%.
This is an easy one. There's not a person in the Star Wars lore that can beat the Hulk. You could throw every Sith Lord and beings with the force his way and they'd all lose. One by one or all at once, the Hulk would beat them all.
Some time later, he faced the Sith Lord Darth Vader. Infil'a put up a fierce fight against Vader, almost killing him by throwing the already damaged Sith Lord off of a cliff. Despite severe damage to his suit, Vader survived the fall, and repaired himself with parts from Infil'a's droid, Arex.
At that moment, the one in which Vader screamed, "No!" in Revenge of the Sith, the Sith apprentice believed himself to be his own worst enemy. Vader hated himself. It likely only grew worse when Vader realized that Palpatine had absolutely played him.
Darth Vader's Insecurities are His Biggest Weaknesses
In the end, virtually all who have made the attempt to use Vader's cybernetic nature against him have ended up dead or defeated. The elite few who have had the upper hand, even before his conversion to mechanical monstrosity, have done so by dominating him mentally.
Emperor Palpatine/Darth Sidious
Villains like Kylo Ren and Darth Vader sometimes feel the pull to the light, but Darth Sidious, also known as Emperor Palpatine, is the embodiment of pure evil.
Even after his brutal scorching in the fires of Mustafar, sand remained the only natural phenomenon that Vader feared. To him, sand was a reminder that he'd failed to save his mother or Padme from death.
1. Darth Sidious (Star Wars: Episode I – The Phantom Menace) Truly, the most powerful Sith Lord was Darth Sidious, better known in his public persona of Chancellor (later Emperor) Palpatine.
In the Star Wars Legends continuity, the founders of the Jedi Order were Jedi Masters Cala Brin, Garon Jard, Rajivari, and Ters Sendon.
#1 – Yoda. Yoda is widely considered to be the greatest Jedi of all time, and with good reason. He is a master of the Force, a skilled warrior, and has an unmatched wisdom that comes from centuries of experience. He is the embodiment of what it means to be a Jedi, and his legacy lives on long after his death.
With an athletic build, an exotic beauty, and blue skin, Aayla Secura stood out among the many faces of the Jedi ranks. A cunning warrior and Jedi Knight during the rise of the Clone Wars, Aayla fought alongside Clone Commander Bly on many exotic battlefields.
According to Star Wars Legends content, the first Sith was a former Jedi Master, Ajunta Pall, who became a so-called Dark Jedi, or “Fallen” Jedi. As the name implies, these Force-sensitives chose to practice the Dark Side, and rejected the Light Side of the Force.
Development. Originally, George Lucas conceived the Sith as a group that served the Emperor in the same way that the Schutzstaffel had served Adolf Hitler. In developing the history for The Empire Strikes Back, Lucas condensed this into one character in the form of Darth Vader.
Affiliation(s) Adas was king of Korriban and the Sith in a reign that lasted nearly three hundred years. He was large for his species, his skin was unusually charcoal-colored, and he was raised as a chosen being from his youth.
Once the heroic Jedi Knight named Anakin Skywalker, Darth Vader was seduced by the dark side of the Force. Forever scarred by his defeat on Mustafar, Vader was transformed into a cybernetically-enhanced Sith Lord.
He is plagued by nightmares of her and visions of her fate. When he eventually saves her from a group of Tuskens on Tatooine, his blind anger at her dying state consumes him. Focused on revenge as he murders an entire Indigenous tribe, Anakin has begun the path to the Dark Side.
In reference to the title, Darth Vader was neither 100% good, nor bad. He started with good intentions but hate drove him down a bad path. Nevertheless, in the end of Star Wars the character showed that there was always some good left inside him and he returned from the Dark Side.