Black Butler has got to be one of my favorite mangas for the supernatural genre, and so would this other manga that I just forgot of the name ;_;
High School Host Club, Hana-kimi, and Skip Beat would be my favorites in the romantic comedy genre.
I really like Hana-Kimi, Kimi ni Todoke and Maid Sama (I love ridiculously fluffy manga :)). I like Attack on Titan too, although it seems to be drawing itself out a little more than is necessary to the plot.
@roseofnoonvale, I just saw an episode of Attack on Titan on Toonami and I have to agree. But the close up on Armin's face.. it's so ridiculously funny on how they drew him. He just has black lines, basically covering his forehead most of the time on a close up.
Not many Otakus have a favorite manga because they have thousands that they love almost equally, but if I were to truly pick out my favorites I would list:
3.) Soredemo Sekai was Utsukushi
4.) Ookami Shoujo to Kuroouji
5.) Real Account
There's a lot more but too lazy to list them all. (=.=)/ *\(^3^) ~<3
Hmmmm.....I have a lot of favorites....so top ten (not in order....)!!
2) Peacemaker Kurogane
3) King of Thorn
4) Hachimitsu to Kuroba
5) Fruits Basket
6) Rurouni Kenshin
7) Shounen Note
8) Are You Alice?
9) Shugo Chara
10) Nabari no Ou
RuroKen and NnO are my faves....and I have many more favorites, but these are are enough right now. XD
Hana-Kimi, Ouran High School Host CLub, Chobits, Spice and Wolf, Alice in the Country of Hearts, Otomen, Kimi ni Todoke, No Game No Life, Toradora, Watashi Ga Motete Dousounda (no one knows it but it's great).