Oliver Queen, or Arrow, is also highly popular. His skills with a bow and arrow, along with his brooding and complex personality, add a lot of depth to the crossovers. He is often the more serious and strategic one compared to Barry.
Felicity Smoak is another popular character. In the crossovers, she is known for her technical expertise. She can hack into almost any system and often provides crucial support to both The Flash and Arrow teams. Her relationship with Oliver also adds an interesting romantic sub - plot to the stories.
Obviously, The Flash and Arrow themselves are must - includes. Their dynamic and different power sets make for great interactions. Also, Cisco Ramon from the Flash side is popular as he can bring in his tech - wizardry to help in the crossover.
Felicity Smoak could also be a key character. She's the tech - genius in the Arrowverse. In a crossover fanfiction, she could play a crucial role in creating a device that helps The Flash and Arrow defeat a high - tech villain. Her relationship with both heroes adds an extra layer of drama and humor.
Well, obviously the Flash and Arrow themselves are very popular. Their dynamic, with the Flash's light - heartedness and super - speed contrasted with Arrow's brooding and combat skills, is really appealing. But also, characters like Felicity Smoak are often popular. She's smart and has great chemistry with both heroes, so she often plays an important role in fanfictions.
Barry Allen is a very interesting character to write about. His super - speed gives a lot of scope for creative writing. You can explore how he experiences time differently, or how he uses his speed in unique ways to solve problems. Oliver Queen is also great. His dual identity as a playboy billionaire and a vigilante archer provides a lot of depth. Writers can delve into his internal struggles, like his fight against his dark side and his journey to become a better hero.
One popular storyline is crossovers where Flash and Arrow characters team up against a common enemy. For example, they might join forces to stop a powerful meta - human or a crime syndicate that's causing chaos in both Star City and Central City. Another common plot is character development arcs. Fans often write about how a character like Oliver Queen might learn new skills or overcome personal traumas in a different way than in the original series. There are also many love - triangle - based fanfictions, such as a love triangle between Barry Allen, Felicity Smoak and Oliver Queen, which adds an interesting romantic dynamic to the existing superhero relationships.
One great Flash and Arrow crossover fanfiction is 'The City's Heroes United'. It has a really engaging plot that combines the unique abilities and personalities of the characters from both shows. The author does a great job of making the interactions between Flash and Arrow's characters feel natural.
One popular storyline is the crossovers where Flash and Arrow team up against a common, powerful enemy that neither could face alone. For example, a super - powered villain who can manipulate time, forcing them to combine their skills and resources. Another common plot is the exploration of their friendship. Flash's light - heartedness contrasting with Arrow's brooding nature often leads to interesting character dynamics.
One common theme is teamwork. Since the Flash and Arrow are from different shows, fanfictions often focus on how they can combine their unique skills to fight a common enemy.
Another theme is friendship. The fanfictions usually explore the developing friendships between the characters from the two shows. They might start off a bit distrustful but then grow to respect and rely on each other. A lot of stories show how Oliver and Barry become closer friends through their shared adventures.
A good Flash and Arrow crossover fanfiction often has well - written character interactions. Since both shows have distinct characters with their own quirks, getting them to interact in a believable way is key. For example, Flash's light - heartedness against Arrow's brooding nature can create interesting dynamics.