The Chosen One was revealed to be Anakin Skywalker, who conceived by the Force itself via the mystical one-celled organisms called midi-chlorians completely without outside influence.
Rather, it is still the case that the one and only Chosen One is Anakin Skywalker, a being who was conceived by the will of the Force itself, and who had no father. But Rey does share the mission of the Chosen One, as indicated by Anakin's words on Exegol.
George Lucas himself has stated that Anakin is the Chosen One and that the prophecy is true, although it had been misinterpreted by the entire Jedi Order. Lucas believes that both the dark side—greed— and the light side—compassion—are integral parts of human beings.
Some fans have speculated Rey to be either the daughter of Luke Skywalker and another woman or daughter of Han Solo and Leia Organa, therefore the sister of Kylo Ren. She would also be the granddaughter of Anakin SKywalker and Padme Amidala.
While most fans agree that Harry is the unrefuted Chosen One, the final Deathly Hallows film (in particular) sways heavily toward highlighting a heroic Neville, revitalizing the debate regarding which boy is better suited for the iconic title.
Should Anakin, Luke and Rey all be the chosen one?
Why is Neville not the chosen one?
If Voldemort had made the Chosen One Neville, then he would not have survived Voldemort's murder attempt on him as a child. Snape would not have asked for him to protect anyone as he did not care for the Longbottoms, this may have meant he never became a double agent too.
Hermione was a prominent example of this as, on the surface, she appeared like someone who would fit right into Ravenclaw. But beyond her interests, her values define her as someone with a take-charge personality and bravery to spare. Unlike Ravenclaws, she didn't apply knowledge in unique ways.
Going by potential power Anakin has 20,000 midichlorians that is known of, but his full potential could have been much higher, maybe 30,000–40,000. Palpatine is stated to have 19,000, so I would safely assume that Rey could have anywhere from 12,000–15,000.
He gave it to Luke Skywalker, who lost it when Darth Vader struck off his son's hand in Cloud City. The lightsaber then became part of Maz Kanata's collection of Jedi curios, where it called to the scavenger Rey. She wielded it in defeating Kylo Ren, then brought it to Ahch-To and offered it back to Luke.
Why Did Rey Bury the Lightsabers? Since Luke and Leia, her masters, have become one with the Force, this is her way of honoring them by putting their weapons to rest. It also shows that Rey is burying the past while carrying it with her — both in her spirit and in the lightsaber she now wields.
A major factor that contributed to Anakin Skywalker's fall to the dark side was the Jedi Council. The Council, led by Jedi Grand Master Yoda ,refused to give Anakin the rank of Master, despite being allowing him a seat among their ranks.
In an early Revenge of the Sith draft, Palpatine confirmed that Darth Plagueis used the Midi-chlorians to start the cell division that created Anakin Skywalker.
Ultimately, the Force dyad that links Rey and Kylo Ren makes Rey the most powerful Jedi between her and the Skywalkers. A Force dyad is described as being more powerful than life itself, striking a perfect balance between the light and dark side.
Although Star Wars: The Rise of Skywalker concludes with Rey choosing the name of Skywalker and completing her path to becoming a Jedi, it's possible that she was actually the reincarnation of Anakin all along.
In The Art of Star Wars: The Rise of Skywalker, art director Rick Carter expressed his opinion that Rey was the one who fulfilled the prophecy rather than Anakin, stating that while that one would be a Skywalker, it didn't necessarily need to be one by blood.
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.
The lightsaber Kylo Ren longed for as his birthright was instead claimed by Rey on Starkiller Base. You need a teacher! I can show you the ways of the Force!" After incapacitating Finn, Ren attempted to summon the lightsaber to him, regarding it as his own property due to its history.
By the time Rey touches the weapon, Anakin has long been redeemed, and the essence inside the Skywalker lightsaber is constantly calling her to learn the ways of the Jedi and fight against the dark side in his place.
Traditionally, yellow lightsabers are associated with Jedi Sentinels, who balance their combat skills with a strong focus on exploration and practical application of the Force. This choice reflects Rey's well-rounded training and her determination to maintain balance in the Force.
Kylo lost to Rey in TFA because he was heavily wounded and was holding back against her due to Snoke's request that he bring her back to him alive. He is also stated by Palpatine in the Secrets of the Sith book to be “equally as powerful as a real Sith despite not being one”.
Despite being the Chosen One, Anakin Skywalker was not the most powerful Jedi in Star Wars, as that honor goes to Ahsoka Tano. The Star Wars prequel trilogy focused on Anakin's desire to become the most powerful Jedi, and while he became very strong in the Force, his lust for power drove him to the dark side.
He actually asked the Sorting Hat to place him in Hufflepuff, as he was intimidated by Gryffindor's reputation for bravery, but the Sorting Hat didn't agree. They debated it for so long, that he was close to being what is known as a Hatstall, which is a term for any student whose Sorting takes longer than five minutes.
Draco Malfoy was sorted into Slytherin House at Hogwarts School of Witchcraft and Wizardry. This was in line with his family's strong belief in the importance of blood purity, a characteristic trait of Slytherin house.
