Finished reading the manga for you, Archangel.

I am not sure which arc Ryllharu thought was "the best", but if you have not done so already, start reading the manga, its spin-offs and the live-action.

The anime has been toned down, I've noticed some minor changes, which is probably the lack of blood and perversion. For example, when Onizuka is studying with Fuyutsuki in her room, he has a boner at night when he's sleeping.