Obviously Iron Man and Batman are the most popular. They are the two main characters that draw people to this crossover in the first place. Their different personalities and approaches to heroism make for a great combination.
JARVIS from Iron Man's side can also be a popular character. When combined with Batman's technology, JARVIS might offer some interesting insights or help in analyzing data in a way that Batman's own systems can't. This interaction between different technological entities can add depth to the story.
In Iron Man 2 fanfiction, Tony Stark stands out as the most popular. His charm, intelligence, and superhero persona draw a lot of attention. Pepper Potts comes in second, as she is an important part of Tony's life, both personally and professionally. Writers love to explore their relationship dynamics. Additionally, Ivan Vanko, the villain in Iron Man 2, is also a popular character in fanfiction. His backstory and his vendetta against the Stark family make for interesting storylines.
Tony Stark is definitely one of the most popular. Since he is the main character in the movie and has such a complex personality, he offers a lot of room for fanfiction writers to explore different aspects of him. Pepper Potts is also popular as she is an important part of Tony's life.
Obviously, Spider - Man and Iron Man themselves are extremely popular. They are the main draws as they are the two iconic heroes. But characters like Pepper Potts might also be popular as she could be involved in stories related to Iron Man's actions in the fanfiction.
In 'Batman Beyond Crossover Fanfiction', Terry McGinnis is a must - have. He is the main protagonist. Another popular character to include is Max, Terry's friend. She can provide support and a different perspective. Also, characters from other DC Animated Universes like Static Shock could be included. His electrical powers and street - smart attitude would contrast well with Batman Beyond's high - tech and more serious approach.
Pepper Potts often plays an important role. She might be involved in helping Iron Man deal with the Ultron situation, either by providing moral support or using her business acumen to handle the fallout of Ultron's attacks. For example, she could be the one to secure resources for Iron Man to build new defenses against Ultron.
Often, villains from both Iron Man and She - Hulk's rogues galleries can be popular in fanfiction. For Iron Man, it could be characters like Mandarin or Obadiah Stane. For She - Hulk, villains like Titania might show up. Their presence creates conflict and gives the heroes something to fight against, which drives the plot forward. And let's not forget characters like Happy Hogan, who can add some humor and a down - to - earth perspective to the stories.
Another popular character is Chewbacca. Picture Chewbacca and Iron Man in the same scene. Iron Man might be initially confused by this large, furry alien, but then they could end up working together. Maybe Chewbacca helps Iron Man understand some of the more wild aspects of the Star Wars universe while Iron Man uses his tech to solve problems for Chewbacca's friends.
Justin Hammer is another popular character. He's often portrayed as the rival or the antagonist in fanfiction. Writers like to play with his character, making him more devious or giving him new motives. His presence can create a lot of tension and conflict in Iron Man Armored Adventures fanfiction.
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.
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.