So... on my list of anime I still need to start I have...
Urusei Yatsura
Spirited Away
Maison Ikkoku
Nura Rise of the Yokai Clan
Akira
Ergo Proxy
Mermaid's Scar
Monster
InuYasha: The Final Act
All 4 InuYasha movies
Hakuouki Hekketsuroku
Hakuoki Reimeiroku
Baccano
Clannad
Rin-ne (manga)
Sailor Moon
Lupin the Third
Fullmetal Alchemist: Brotherhood
Ninja Scroll
And then the unfinished animes I have are Ranma 1/2, Code Geass, Angel Beats, Soul Eater, Fullmetal Alchemist, Love Hina, Wolf's Rain, The Melancholy of Haruhi Suzumiya, and now Hakuouki Shinsengumi Kitan (might have forgot a couple but whatever).
It's getting hard to keep track of all of these lol
You watched rosario vampire so you should have some ability to be desensitized to some of the ecchi. But the witty dialogue is what makes the anime so good.
and it's comedy.
The anime has to do with supernatural stuff. Vampires/cursed monkey paws. Ect ect.