Rainbow Dash is also popular. Her athleticism and bold personality can create interesting dynamics. In a crossover with the Teen Titans, she could compete with Robin in a series of challenges, or team up with Starfire to take on a common enemy.
Pinkie Pie is another favorite. Her fun - loving and unpredictable nature can bring a lot of humor to crossovers. Imagine a crossover with the Looney Tunes. Pinkie Pie could have a wacky adventure with Bugs Bunny, getting into all sorts of crazy situations and making everyone laugh along the way.
Twilight Sparkle is really popular. Since she's the main character in the original series, a lot of fanfictions revolve around her adventures and her trying to adapt to the human world in the Equestria Girls universe.
Definitely Wonder Woman. She's such an iconic character and in crossovers, she can bring her strength and wisdom. For example, if she crosses over with the Birds of Prey, she could lead the team in a fight against some new threat to the city.
The IMC soldiers can also be great for crossovers. They have their own set of skills and motives. In a crossover with a stealth - based game universe, the IMC soldiers' combat tactics and equipment could add an element of intrigue.
Alya is also a great character to feature. Her intelligence and strategic thinking can be useful in different crossover scenarios. If crossed over with a science - fiction world, she could be involved in advanced technological research or battles against alien invaders.
Wonder Woman is an obvious choice as she is from Themyscira. She can be paired with characters from other universes like Superman for a DC crossover. In a crossover with the 'X - Men' universe, she could interact with Storm, two powerful female characters with different abilities. Another popular character would be Hippolyta. She could be involved in a crossover where she has to negotiate with leaders from other fictional kingdoms or planets.
Definitely Maurecia. She's got such a fun and unpredictable personality that she can bring a lot of energy to a crossover. Todd would also be great as he's often the 'normal' one in the Wayside chaos, so seeing him interact with characters from other worlds could be really interesting. And let's not forget Mrs. Jewls, who could use her wisdom and authority in a crossover situation to keep things in order or add some comical misunderstandings.
One character that is often used is Cortana from Halo. Her intelligence and relationship with Master Chief can be a great addition to a crossover. In the Starcraft universe, she could interact with the AI units there. Then there's Fenix from Starcraft. His honor - bound nature and combat prowess would be cool to see in the Halo setting. Also, the Flood-infected characters in Halo could be a unique addition to a Starcraft crossover. They could pose a new kind of threat to the Starcraft races, and seeing how the different factions deal with them would be engaging.
Sigmar is a great choice. His heroic and god - like status in Warhammer Fantasy could make for interesting interactions in a crossover. Another is Malekith. His dark and complex nature would add depth to crossovers, especially with darker - themed universes. Then there's Teclis, the high elf mage. His powerful magic could be a key element when crossing over with other magic - heavy worlds.
Eli Wallace is a great character to feature. His brilliant mind and his journey from a civilian to an important part of the Destiny crew can bring a lot to a crossover. In a crossover with Stargate SG - 1, he could interact with Daniel Jackson, and they could have some really interesting exchanges about ancient knowledge and technology.
Naruto himself is often a popular choice. His energetic and determined personality can bring a lot to the crossover. He could be curious about the Aico world and use his ninja skills to explore it.