I'd recommend 'A devil and her love song'. Admittedly I am only three volumes in but I'm seriously enjoying it, I'd say it's more entertaining than Kimi Ni Todoke (since the characters feel more rounded and the plot twists aren't as obvious) but it isn't a bad shout either.
I'd also recommend checking out 'Moah - Juvenile remix', it is catagorised as shonen but it is a far cry from Naruto or Bleach. Rather than blasting the enemy with lasers until they keel over, there's a greater focus on the tactical aspects of combat(if you can call it that). Some characters have limited ESP abilities, so they can't really get physical with each other, instead they have to use the environment and their abilities to their advantage, to overcome their adversaries. If you have read Jojo's bizarre adventure or Hunter x Hunter, it is along the same lines but more grounded, still.
