What would be the most interesting character interactions in an Attack on Titan and Transformers crossover fanfic?

Definitely Optimus and Eren. Eren is so driven by his goals of destroying all Titans, and Optimus has his own sense of justice and protecting the innocent. Their interaction could be intense as they both come from very different worlds but share a common goal of protecting others. Eren could be in awe of Optimus' power and size, and Optimus could see Eren's determination as a valuable trait.

I think Optimus Prime and Captain America would have a great interaction. Optimus, with his strong sense of justice and leadership in the Autobot ranks, would find a kindred spirit in Captain America. They could exchange ideas about leading their respective teams in difficult situations.

Captain America and Levi Ackerman would be another great pair. Both are highly skilled fighters and leaders. They would probably respect each other's combat abilities right away. Captain America could learn a thing or two about Levi's quick - draw and precise fighting style, and Levi might be inspired by Captain America's unwavering sense of justice and leadership. They could lead their respective groups in the fight against the combined threats of the Titans and any villains from the Avengers' world.

Naruto and Eren would definitely have an interesting interaction. Naruto, with his belief in never giving up and always finding a way forward, could inspire Eren, who has his own strong will but is also burdened by a lot of anger. Their different ways of dealing with difficult situations would make for great dialogue. Also, Levi and Sasuke could be an interesting pair. They are both highly skilled fighters with a bit of a cold exterior. They might start off as rivals, but then come to respect each other's abilities as they fight together against the Titans.

Another interesting interaction could be between Ironman and Bumblebee. Bumblebee is more friendly and curious compared to some of the other Transformers. Ironman could be intrigued by Bumblebee's ability to communicate through radio signals and his youthful energy. They might team up for some undercover missions where Bumblebee's small size and agility, combined with Ironman's high - tech gadgets, would be a great advantage.

One possible plot could be that the Titans are actually some kind of ancient, corrupted Transformers. The Survey Corps discovers a hidden technology that has the power to control or at least influence the Titans. Eren, with his Titan - shifting ability, might have a special connection to this technology. The Autobots arrive on the scene, initially seen as a threat by the humans. But as they learn about the Titans, they team up with the Survey Corps to fight against this common enemy, using their advanced weaponry and Eren's unique power.

I think Iron Man and Armin would be an interesting pairing. Iron Man with his brilliant mind and high - tech gadgets could learn a lot from Armin's strategic thinking. And Armin could be amazed by Iron Man's technology and learn new ways to fight the Titans.

It has to be Naruto himself. His never - give - up attitude and his ability to make friends easily would make him a great addition to the world of Attack on Titan. He could inspire the characters in that world, like Eren, to keep fighting even in the face of despair. Also, his unique powers would be really cool to see against the Titans.

Levi Ackerman would be an interesting choice. His exceptional combat skills and no - nonsense attitude would make him stand out in the Destiny universe. He could quickly adapt to the Guardians' fighting styles and weapons. His precision with the blades could be compared to the Guardians' accuracy with their guns. And his loyalty to his comrades would be an asset when dealing with the various factions in Destiny. He would be intrigued by the different races and the concept of the Light, and would likely use his skills to protect those in need in the new world.

I think Naruto and Levi would be really interesting. Naruto's positive and determined attitude would contrast with Levi's more stoic and no - nonsense personality. They could learn a great deal from each other. Naruto could teach Levi about the power of friendship and believing in oneself, while Levi could show Naruto some of his amazing combat skills and discipline.