Nevertheless, most Jedi died. This included in the Jedi Temple, where almost everyone, including younglings, were killed by Vader and his clone forces.
Because he was not an active member of the Jedi Order during Order 66, Infil'a escaped execution. 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.
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.
Obi-Wan Kenobi soundly defeated Vader in Star Wars: Episode III - Revenge of the Sith and Obi-Wan Kenobi, and is easily one of the most powerful Jedi Vader ever faced. Vader and Obi-Wan were similar in swordsmanship and Force-sensitivity, but Vader's hatred of Obi-Wan often caused him to fight irrationally.
How Darth Vader Killed 8 Jedi at Once (With the 501st's Help) [Legends]
What Sith could beat Vader?
The only Sith Lord who actually killed Vader, Darth Sidious kept his apprentice in line for over two decades. His true advantage was Force lightning, a power which would wreak havoc on the suit keeping him alive.
However, some of the most powerful and ruthless Jedi Masters in the Star Wars universe include Mace Windu, Yoda, Obi-Wan Kenobi, Qui-Gon Jinn, Luke Skywalker, and Anakin Skywalker (prior to his turn to the dark side).
A year later, in 4 ABY, with his health rapidly declining, Yoda died of old age when Skywalker returned to see him. He became one with the Force, shortly before Luke redeemed his father Anakin, who fulfilled his destiny as the Chosen One by killing Sidious.
With all of that in mind, if Darth Vader had managed to find feeble old Yoda sometime around the same period as the beginning of A New Hope, he likely still would not have been able to defeat the Jedi Master.
When tallying up the lightsaber losses, Obi-Wan Kenobi lost his blade a total of 12 times between the events in the prequel films and The Clone Wars. In contrast, Anakin lost his only eight times.
Order 69(AKA "clean up") was the idea to kill the entire clone army in one sitting, leaving the Jedi defenseless and exposed by the sudden departure. Palpatine knows the Jedi's weakness is empathy and most will try to help the clones and now it should be easy to either drive the Jedi into hiding or have them killed.
Summary. Jar Jar Binks's clumsiness may not be genuine, but rather an act to disguise his true nature as a Sith Lord infiltrating the Republic. Palpatine carefully orchestrated events to manipulate the galaxy, and Jar Jar's involvement suggests he may have been the eyes and ears on Naboo.
Legend had it that Yoda—a Jedi who became Grand Master—was trained by N'Kata Del Gormo. A Force-sensitive Hysalrian, N'Kata Del Gormo was trained in the ways of the Force and achieved the rank of Master within the Jedi Order.
The realistic answer seems to be, yes, Anakin in his prime could have defeated Luke Skywalker (in the current canon) if they battled one-on-one. The main reason behind this is Luke's lack of formal Jedi training, at least when it comes to combat.
In those movies, Mace was someone who loved confrontation, with his bullish ways usually winning arguments. However, he rubbed many the wrong way, and as the novel detailed, he was someone vehemently against Anakin joining the Jedi Order.
Anakin Hated Obi-Wan Because of an Imagined Relationship With Padme. Although Padme and Obi-Wan's affair couldn't have been further from the truth, Anakin apparently built up a scenario in his mind, which was only heightened by the Jedi Council's obfuscation in other areas.
Yep. Darth Maul didn't really say or show straight up that he "feared" Darth Vader, but he openly stated his belief that he could not defeat Darth Vader without the help of the Jedi, therefore on his own.
In a Vanity Fair interview from 2005, George Lucas went deeper into why Anakin became much weaker as Vader. In the interview, he explained that because Anakin's limbs were severed and replaced by robotics, it was harder for him to use the Force than it was before his battle with Obi-Wan.
Vader had been using all his energy to intimidate Luke, so when the actual fight began in a flash, he was already weak and panting. This leads to another huge factor, which is the age difference. While Luke was a young and spry 23-year-old, Vader was reaching his late 40s.
