In my opinion, an actually good fanfiction is one that respects the source material while also being creative. It doesn't go against the established lore too much. Take a Lord of the Rings fanfiction. It should fit within the world Tolkien created. The pacing also matters. A story that moves too slowly or too quickly can be off - putting. And the dialogue should be natural, like how the characters would really talk in that universe.
A good Avatar fanfiction often has well - developed characters. Just like in the original series, the characters should be true to their personalities. For example, if Aang is in the fanfic, he should still have his kind - hearted and sometimes goofy nature. Also, an interesting plot is key. It could be a new adventure that fits within the Avatar universe, or a different take on an existing storyline.
A good Twilight fanfiction often has well - developed characters. For example, it might explore the backstories of secondary characters more deeply. It should also have an engaging plot. Instead of just repeating the events in the original books, it could introduce new twists and conflicts.
A good romance novel often has well - developed characters. If the characters are believable and complex, readers can really connect with them. For example, in 'Pride and Prejudice', Elizabeth's strong - willed nature and Mr. Darcy's pride are what make their relationship so interesting. Another factor is the plot. It should be engaging, with some sort of conflict or obstacle for the couple to overcome, like in 'Outlander' where Claire has to deal with the challenges of being in a different time period while falling in love with Jamie.
The contrast it creates. Usually, Luffy is seen as a bit of a goofball, so when fanfiction makes him smart, it's a fresh take.
A strong emotional connection between the characters. For example, in 'Call Me by Your Name', the intense feelings that Elio and Oliver have for each other create a great romance story. You can feel their longing, their hesitation, and their passion through their interactions.
A good Doctor Who fanfic usually has a compelling plot that stays true to the show's spirit. It also has well-developed characters and interesting adventures.
One good Naruto fanfiction is 'A New Path'. It explores an alternate universe where Naruto discovers a new form of chakra early on. Another great one is 'The Uchiha Redemption', which focuses on Sasuke's journey to redeem his clan's name in a more in - depth way. 'Naruto: The Hidden Teacher' is also interesting as it has Naruto becoming a secret teacher to the new generation of ninja.
The authenticity makes it special. In a real love story, the emotions are genuine. For example, when two people support each other through difficulties, like financial problems or health issues. It's not just about the good times but also standing by each other during the bad. That's what sets an actual love story apart from fictional ones.
The element of the unknown. In actually scary stories, not knowing what's going to happen next creates fear. For example, in a story about a haunted attic, you don't know what the ghostly presence will do.
Quality young adult fiction also has good writing. The language should be appropriate for the age group but still be well - crafted. In books like 'The Book Thief' by Markus Zusak, the unique narrative style and beautiful prose draw readers in. Another factor is the ability to make the reader think. '1984' is often read in young adult settings as it makes readers consider issues of government control and freedom, even though it was written for adults originally.