Gaaaaaaaaah~ where's The World God Only Knows season 3!! Anyhow, Here's my short little list;
Yotsuba&! - About a funny little girl.
Dragon Quest, the adventure of Dai - Great story and battles!
Blade of the Phantom Master (Shin Angyō Onshi) - I remember it as nicely drawn, interesting story, bloody but without the meaningless gore.
Berserk - Insane gore, bloody as hell, jaw-dropping-demons, and 18+. I stopped reading because there hasn't been any updates for like months. Rumor is that the artist is addicted to his Xbox360...
Dragon Ball - I finished the manga, never watched the anime D=
Gantz - Kinda like Berserk, but instead of a fantasy theme, it's a Sci-fi. 18+
Doraemon - Doraemon is just iconic! Too bad it doesn't have an official ending.