One of the most frequently used villains in Batman fanfiction is Two - Face. His split personality makes for great internal conflict within the character. Scarecrow is also popular as his use of fear toxin can create really intense and spooky storylines. Killer Croc, with his monstrous appearance and his outcast status, can also be an interesting villain to write about in fanfiction.
The Joker is probably the most popular. His chaotic and unpredictable nature creates a great contrast with Batman's brooding and methodical approach. Harley Quinn is also a common choice, especially in stories that explore her complex relationship with both the Joker and Batman. Then there's Bane, who is known for his physical and mental strength, and his battles with Batman are always intense in fanfiction.
The Joker is probably one of the most popular. His chaotic and unpredictable nature makes him a great character to explore in fanfiction. Writers can come up with all kinds of crazy scenarios for him. Harley Quinn is also very popular. Her relationship with the Joker and her own journey of self - discovery are often the focus of fanfictions. Another popular one is Bane. His physical strength and strategic mind are interesting to write about, especially in battles against Batman. And then there's Catwoman, who has that alluring and complex personality that draws in readers and writers alike.
Salem is also a very popular villain in RWBY fanfiction. Given her status as the main overarching villain in the series, fanfic writers like to expand on her backstory, her motives, and her long - term plans. There could be fanfictions that focus on her interactions with other villains in a more detailed way.
The Joker could be a likely villain. Imagine his chaotic nature combined with the supernatural. He might team up with a demon to create even more mayhem in both Gotham and Sunnydale. His unpredictable actions would pose a huge challenge to Buffy and Batman.
Robin, in all his incarnations, is also a popular character in fanfiction related to Batman. He represents the sidekick aspect and the growth and development that comes with it. In Batman Beyond, Commissioner Barbara Gordon also features prominently in some fanfictions. Her connection to the original Batman era and her role in the new one can be explored in interesting ways.
Batman himself is of course extremely popular. He is the central figure, and in 1939 fanfiction, people love to explore different aspects of his character, like his detective skills and his relationships.
The Green Goblin is very popular. His chaotic nature and personal vendetta against Spider - Man make for great storytelling in fanfiction.
Maleficent is often very popular. Her powerful magic and her iconic look make her a great candidate for revenge stories. She has a strong presence and a deep - seated hatred for those who wronged her, like Aurora and the fairies in Sleeping Beauty. So in fanfiction, she can be really menacing when seeking revenge.
One popular theme is Harley's redemption. Many fanfictions explore how the environment of Arkham City could be a catalyst for Harley to break away from the Joker's influence. For example, in some stories, Batman helps her see the error of her ways.
Batman himself is obviously very popular. His dark and brooding nature contrasts well with the more colorful X - Men world. Also, Wolverine is often a fan favorite in these crossovers because of his tough - guy attitude.