[Espy]

Hm...my tastes are rather on the gory side.

Jackals (...Whee, lots of fighting and bloodshed x___X;)
Wolf Guy (Has a bit of explicit stuff.)
Akumetsu (Don't mind the R-rated stuff in the first chapter. That's the only bit.)
Dogs (both the intro and the main series...One of them is called Bullets and Carnage, and I can't remember which)
Hellsing
Abara (haven't finished this one yet. Kind of disturbing.)
Deadman Wonderland (working on this right now)
Darren Shan (Decent story.)
Trace (A really, really nice manwha)
Vagabond (R-ratedness, but lots of decent...other stuff.)
Sidooh (more ronin-type manga)
Anuki