Well, often you'll see themes related to ideology clash. Superman believes in the good in people and using his powers for the greater good in a more straightforward way. Batman, on the other hand, is more cynical and might see Superman's methods as naive. Another common theme is a personal vendetta. Perhaps something happened in their past that made Batman hold a grudge against Superman. It could be something as simple as Superman accidentally causing harm while trying to save the day, and Batman can't forgive that.
A frequent theme is the clash of personalities. Batman is often depicted as dark and brooding, while Robin can be more light - hearted and impulsive. In fanfiction, this difference can be exaggerated, leading to constant friction and eventually Batman hating Robin. Also, the theme of a broken father - son relationship often comes up. Batman is like a father figure to Robin, and when this relationship breaks down in a bad way, it can result in Batman's hatred.
One common theme is the contrast between their personalities. Batman is the dark, brooding detective, while Superman is the bright - eyed, idealistic hero. Fanfictions often explore how they interact with each other given these differences.
Another theme is the exploration of their powers and how they can be used in combination. For example, Superman's super strength and flight combined with Batman's intelligence and gadgets. Also, the theme of trust often comes up. Since they are so different, fanfictions often show how they learn to trust each other more and more as they face various challenges.
Yes, there might be some well - written ones. There are many talented fanfic writers out there who could explore such a complex and controversial concept in an interesting way. However, it's also a very subjective matter as some fans might not like the idea of Batman hating Superman in fanfiction at all.
One common theme is trust - building. Given Batman's caution and Superman's otherworldly nature, fanfics often explore how they come to trust each other. Another theme is the power dynamic. Since Superman is so powerful, it's about how Batman deals with that. Also, there's the theme of family. Batman has his own adopted family in the Bat - family, and Superman has his Kryptonian heritage. Fanfictions might explore how their different family situations affect their friendship.
One common theme is empowerment. Female characters often take on strong roles, showing that they can be as heroic as Superman and Batman. For example, in many fics, they might save the day in a big crisis.
One common theme could be the relationship dynamic between Superman and Batman. It might explore how their usual partnership or rivalry is affected by this unexpected situation. Another theme could be the challenges of the mpreg itself, like how Superman or Batman deal with the physical and emotional aspects of it.
Friendship and partnership is another theme. In many of these fanfictions, Fem Batman and Fem Superman have to learn to work together. Their different personalities and powers create an interesting dynamic. They might start off not getting along but then grow to respect and rely on each other, like in the story 'The United Front' where they have to overcome their differences to defeat a powerful enemy.
A theme that frequently appears is redemption. Sometimes Batman might be in a situation because of a mistake he made, and Superman saving him is a form of redemption. Also, the theme of heroism is prominent. Superman's act of saving Batman reaffirms their status as heroes and shows their selfless nature towards each other.
One common theme is empowerment. Female versions of these iconic characters often break gender barriers and show that they can be just as heroic as the male counterparts.