Many Star Wars fans consider Anakin Skywalker effectively a different character from Darth Vader. However, analyzing Anakin's character progression from Jedi to Sith can be very interesting, especially depending on viewing order. For fans of the original trilogy, the prequels' portrayal of Anakin may have been startling. On the other hand, a chronological viewing, especially one that includes the Clone Wars series, may depict a slow but steady character arc for young Skywalker with a tragic but inevitable conclusion.
Compare and contrast the two characters. What traits of Anakin's remain in Darth Vader, and how are they portrayed differently? Where do we see traits of Darth Vader peeking through in Anakin during the prequel era? Does this change how we see other heroes and villains, like Luke Skywalker or Kylo Ren, and even characters from other franchises?
Regarding the aspects of Luke and Kylo, it might be useful to look at things that used to be canon in Star Wars, but are no longer. What comes to mind is the comic that likely inspired the Ben Solo in the new trilogy. – Siothrún9 months ago