Same as someone else in this thread. My very first manga was Suzuka and I fell in love with it. I've been watching Anime for a long time, but I got into manga about 4 years ago. I just loved Suzuka, one because it was a lot of ecchi, and also had a romance/comedy in it.
I'm a sucker for romance mangas, it's weird because I'm a guy. But that was my favorite manga so far, but I like a lot of other mangas just as much as Suzuka.