Toge Inumaki is important too. His special cursed speech ability makes him stand out. Also, the principal of the school, Masamichi Yaga, is likely to be important as he is in a position of authority and has an influence on Gojo and the other students. There could be other characters like the members of different clans that also play roles in the complex web of the story.
The action and battles. For example, in 'Fullmetal Alchemist: Brotherhood', the alchemical battles are intense and exciting. And the unique settings. Take 'Sailor Moon', the magical girl setting in a modern - day city with other - worldly threats is very captivating. Moreover, the friendships and alliances formed during the adventures, like in 'Fairy Tail', add emotional depth to the story.
First, you need to decide what you're ranking. It could be characters, story arcs, or even the settings in Anime Adventures. Then, consider the criteria for ranking. For characters, it might be their growth throughout the story, their power level, or their importance to the overall plot. Once you've determined the criteria, start ranking them into different tiers, like S - tier for the best, A - tier for very good, and so on.