*Making memory of what I have read*
Good Ending was promising (but there is a part when everything become awful and cheesy)
Kimi Ni Todoke very popular, but didn't hook me.
Kaichou wa Maid-sama!, it wasn't for me (but I found it very light, so, is easy to be liked)
Vampire Knight, love triangle (kinda repetitive).
The Bride of the Water God, is very good (I like the art).
Ranma 1/2 (this is the shojo/shonen by exellence).
Shoujo Shounen (the name says everything. No one should read this).
100% Ichigo, I never understood why people like it, is kinda good at the beginning, but it disapoint you in the middle.
Vampire Crisis, didn't like it.
Kurobara Alice, reading it.
Deep Love Virus, bad.
Delinquent Lesson, I hate when the badass guy look like a girl.
Chrome Breaker, is for kids.
Jigoku Shoujo R, is ok.
NHK (is kinda shojo), I like it.
There was other I don't remember the name, of a guy who is destroyed by a UFO, but htey gave him a girl body as a compensation by the problems (it was ok).
I don't remember more =/
For me the deal with Shojo mangas, is that, is always the same, and same characters. If I do one, I would make the guy a depresive kid who have tried to kill himself and the girl a sex addict niphomaniac, and they meet in the psychiatric clinic, and they are between a relationship of friendship, trying to conquer their problems, but at the same time they like each other (but they know they can't be together, because that would be a problem to their recovery). That would be a kick ass love story.
Horror. Junji Ito all the way jajaja (yeah Horror is a great genre, but hard to make).
This is the best signture that a person can have.