My top 3:
*Hajime no Ippo
*Naruto
*Katekyou Hitman Reborn
I'm pretty much stuck with the same few mangas and always waiting for the new chapter to be out (and its kinda sucks to wait for 1 week for the new chapters to be out >.<).
I hope you guys can share your fave mangas so i can find out and read great mangas that i never knew.