Princess Bubblegum would also be very popular. She's smart and has a lot of leadership qualities. Plus, she can create amazing things, so she'd be like the school's science prodigy. She'd probably be in all the advanced classes and be part of many school clubs.
Finn is a really popular one. He's the hero in Adventure Time, and in high school settings, he can be the brave jock or the new kid who stands up to bullies. Princess Bubblegum is also popular. She can be the smart and popular girl, or the science - nerd type. Jake might be there too, as Finn's sidekick or as a laid - back student.
I think Naruto would be super popular. He's always getting into trouble in a fun way and has a big heart. Kakashi would be popular among the students as the laid - back yet wise teacher. Hinata might be popular as well, being the shy but kind - hearted girl who has a hidden strength. And of course, Rock Lee with his never - give - up attitude would be a favorite.
Probably Iron Man would be popular. He'd be the rich, smart kid with all the cool gadgets. Captain America would also be well - liked. His sense of justice and leadership would make him a respected figure among students. And Black Widow would be popular among the boys for her charm and mystery.
Natsu would likely be very popular. His hot - headed and adventurous nature would make for a lot of interesting stories at high school. He'd probably be getting into all sorts of trouble, like starting food fights in the cafeteria or accidentally setting off small explosions in the science lab.
Probably Iron Man. He's rich, smart, and has a cool attitude. He'd be the one with all the latest gadgets and would throw the best parties.
Finn and Jake are still really popular even in genderbend fanfiction. Their friendship is iconic, and seeing how it changes when their genders are swapped is fascinating to many fans.
Naruto himself is often very popular. His energetic and determined personality makes him a central figure. Sasuke is also popular as he adds a brooding and mysterious element. Sakura is another common favorite, especially when she's portrayed as a strong - willed student in high school. Hinata is also well - liked for her shy but kind nature.
Onua might also be popular. He's reliable and strong. In high school, he could be the go - to guy for any problems. If someone needs help moving heavy things for a school event or needs protection from bullies, Onua would be there. His quiet strength would earn him a lot of respect and popularity among the students.
Black Widow might be the most popular. She has a mysterious allure, is highly skilled in combat and espionage, and she could be the cool, confident girl that everyone wants to be friends with or be like. She'd also be very intelligent and able to handle any social situation with ease.
Ruby would probably be quite popular. Her bubbly and energetic personality would draw people to her. She's always positive and eager to make friends, and her skills in combat (even in a high school setting, like a martial arts club perhaps) would earn her respect from her peers.