Am only just starting this series, but can I just say very quickly, the girl who kills the evil undead with awesome motorbike martial arts... very kick ass.
Animation quality is vurra noice and the main character is easy on the eyes too. Hmmm... might end up quite liking this.
As for Hanasakeru Seishounen... ehhhh, the female lead's starting to get on my nerves. A little too much blind faith and trust that people will do the right thing happening.
EDIT: Just finished the first episode of Ga-rei and holy crap they don't hold anything back. Kick you straight into the action with a healthy dose of good plot and likable characters. But it still holds its wtf-ery and quite frankly, I have no idea how episode two is even going to start considering how episode one ended. O.o!
It sort of reminds me of shows like Full Metal Panic, Toshokan Sensou and Darker Then Black, if that gives you an idea.