I stumbled over a pretty darn good action manga named Sengoku Youko. It's about a female youkai who wants to protect humans and youkai both, a young male youkai with great fighting power who hates humans, and a tag-a-long ronin who lacks power and skill. Under the direction of the female youkai, they help those in need, but end up being hunted by a powerful sect of youkai-slaying monks who will do anything in order to meet their goals, plowing over the lives of humans and monsters both.
I'm starting to believe that there is a lot of great stuff out there that doesn't get talked about much because they're not in one of the big magazines.