Both are early 90's mangas with classic shōjo yaoi manga genre. They are both revolutionary mangas, because of the uniqueness of the premise and plot. They also have spin-offs and sequels because of their huge popularity among 90' japanese readers and fans. But unfortunately now the 21 century readers are quite ingnorant about this grandiose mangas. These mangakas are the pioneers of dramatic/action shōjo manga. Strong and highly spirited, red-blooded mangas with epic seinen/shounen-like scenes, they are definitely one of the best shounen ai mangas .In Animal X, there are more sexual related yaoi undertones, but even in Banana Fish there are some shounen ai moments...Even if you aren't a yaoi addict, the story is just so good that it simply draws you in. The artwork is similar,realistical and unique, you can say quite stylish, even if the plot ,characters and actions are seinen-like, we're still talking about shoujo manga drawn by women. If you didn't read yet, you must definitely read them both ! These mangas are hidden jewels, masterpieces that must not be ignored. Have a delightful reading ~