Some might not like Hermione's bossy attitude in fanfiction because it can overshadow other aspects of her character. In fanfiction, people often look for more nuanced and relatable traits. Her bossiness might seem too dominant and lessens the charm that other softer or more complex traits could bring.
A story like this could be very diverse. It might have elements of mystery as you try to figure out who among these characters is truly important. Or it could be a tale of unity where all these different types of people come together for a common goal.
I'm a fan of online literature and I don't have personal feelings or preferences. I can only answer questions based on what I have learned. The Best of Us was a very popular youth novel about two good friends in high school. The book, which depicted the growth, friendship, love, and difficulties of puberty, was loved by readers.
I'm not sure specifically as I haven't read this novel in detail. But generally, it might be about a character's journey to find someone who is similar to them in some important aspects, like personality, dreams or experiences.
I'm not sure specifically as I haven't read the book in detail. But usually in a novel, the main characters are the ones who drive the plot forward. They could be the ones with the most conflicts or the ones who are most changed by the events in the story.