As he remembered his past, Obi-Wan was afraid—afraid of how he'd failed Anakin, afraid of the man Anakin had become, and afraid of failing now. And that fear brought him close to death, both physical and spiritual. Because as Yoda once said, “Fear is the path to the dark side. Fear leads to anger.
As seen in the Obi-Wan Kenobi series, the protagonist was terrified of facing Darth Vader, mainly because it reminded him of his failure to save Anakin. Obi-Wan couldn't properly fight Vader due to his guilt, which brought out the fear in him that nearly caused his demise at Vader's hands.
He also had to live with the fact he basically trained Darth Vader and watched him turn on the Jedi, killing countless people even after Order 66. Given the events of Obi-Wan Kenobi and the prequels, it is pretty clear that Obi-Wan's ultimate weakness is likely his PTSD.
The reasoning comes from, not only his fears that he isn't strong enough to defeat Vader after 10 years in hiding but the fact that facing Vader means Obi-Wan will have to face up to his greatest failure.
Sadly, Obi-Wan was afraid to confront Anakin because he knew that after the deaths of Shmi and Qui-Gon, explaining how attachments had to be severed would tip his pupil over the edge.
The title "Hero With No Fear" was one of many monikers given to Anakin Skywalker during the Clone Wars. Following his exploits during the Battles of Jabiim and Aargonar, HoloNet features commonly referred to Skywalker using this nickname, turning him into a poster boy for the Republic war effort.
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.
It's even possible that Obi-Wan cut himself off from the Force entirely. That's the smart move -- the Grand Inquisitor opines as much -- and it would further explain how he's remained out of sight after a decade of Vader's fruitless searches.
While Obi-Wan Kenobi was frail by the time of Star Wars: A New Hope, he was still stronger with the Force than Darth Vader. The duel between Obi-Wan Kenobi and Darth Vader in Star Wars: A New Hope looks dated by today's standards.
Moments later, Vader confronts him, and they engage in a lightsaber duel. Obi-Wan uses the duel to distract Vader as Luke, Leia, Han, and Chewbacca escape to the Falcon. Obi-Wan allows Vader to strike him down, and his body mysteriously vanishes the moment he dies.
Quite simply, Qui-Gon did not have much training when it came to trying to combat Sith Lords, and at the time, it would have been irresponsible for the Jedi Counsel to spend any additional time concerning a threat that was considered long extinct, especially when you add to the fact that they believed they would be ...
Obi Wan is one of the most powerful Jedi to have ever lived. He is the best defensive duelist in galactic history according to Mace Windu and numerous factbooks. He had a low sensitivity to the force but mastered it to his fullest potential worshiping the force as opposed to bending it to his will.
Hoi-broth was an Aqualish soup and beverage which was considered a delicacy. Jedi Master Obi-Wan Kenobi was allergic to the soup and once reacted badly to drinking it on the planet Ando.
Obi-Wan got a total score of 54. According to the scoring guide, that makes him PTSD positive. This also feels right. The events of Revenge of the Sith were highly traumatic.
Obi-Wan's trauma
He lost the Jedi order, a group that he dedicated his life to, and the loss of all of his friends and the young Jedi at the hands of the Sith enacts a heavy toll on him.
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%.
1 Darth Sidious
As well as being a gifted bladesman Sidious' connection to the Dark Side is extremely powerful, granting Sidious the ability to conduct force lightning.
The Force: Kenobi was extremely powerful, and had an extremely strong connection to the Force, and was one of the most powerful force users of his time. Though Kenobi did focus largely on Lightsaber combat, he was also very skilled and powerful in use of the Force.
The added risk Darth Vader takes in allowing children to live in a situation where he could have killed them proves that he regrets killing Younglings and will avoid harming any more children for the rest of his days, though intense intimidation is a dark strategy to avoid repeating his Youngling massacre.
Many are often shocked to find that Obi-Wan was only 57 years old when he died fighting Darth Vader in A New Hope.
Having covertly turned Kylo Ren—Anakin's grandson and Luke's nephew—to the dark side, Palpatine orders Ren to find and kill Rey, the last remaining Jedi and Palpatine's paternal granddaughter. Palpatine is ultimately defeated and destroyed by Rey.
ANAKIN: I won't let this one become real, Padmé. This marks the beginning of Anakin's obsessive fear about losing Padmé. He's not being entirely unreasonable, though; the last time he had these terrible dreams was when his mother was being tortured by the Sand People, and he got there too late to rescue her.
As soon as Anakin Skywalker became Darth Vader, he already faced his most persistent nemesis and lost, namely his own master, Obi-Wan Kenobi. Their first battle took place on Mustafar and Vader nearly ran out of limbs in a rather humiliating defeat.
Having faced his father once before, Luke was familiar with his tactics and used the force to gain an upper-hand. In Star Wars Canon, only Luke Skywalker can be acknowledged as the one who truly defeated Darth Vader.