I love shojo. Some of my favorite series are shojo. (The first three are all time favorites. The last one... well, if she keeps on being tough then it might become a top favorite of mine.)
Vampire Knight which is my favorite shojo of all time. I can pick up any vk that I've read a thousand times and read it like it's the first time. It's a very special manga to me.
Angel Sanctuary or anything by Kaori Yuki, really. The dark themes and violence of her work excite me, even though I'm not guro fan or anything.
Fushigi Yuugi: Genbu Kaiden action, adventure, and just a little romance, so that when it does come it knocks you off your feet! Even a guy could love this series. (I do.)
Sakura Hime Kaden which, even though its uber girlie (I don't know how I stand it) it still has a strong heroine that you actually want to root for.
Anyway, my point is, there are many shojo series I really love/enjoy, and because of them I don't hate the whole genre.