D.Gray-man, Busou Renkin Recommendations
Seems like your run-of-the-mill shounens at the starts but turns out to be something more.
Ok, I have just completed watching BUSOU RENKIN, and it is by far the best I have seen. I will not put spoilers for those who have not yet seen/completed it, but, I do have to say, if you have not, GO>>>RUN>>>! You will most assuredly not regret it. If you like action, drama, romance, comedy, and just having a kick ass time, you will like this anime. It is Bleach, Full-Metal Alchemist, and D.Grayman all rolled into one. You will see the similarities. If you like those three, I don't see how you can't like Busou Renkin and fall in
Both these animes include organizations that contain fighters who use weapons to destroy the enemy. D.gray-man uses weapons called innocence to fight akuma and Busou Renkin use weapons called Busou Renkin [Arms Alchemy] to fight homonculus, both involve activation.
Both have lots of action, with each character possessing a unique weapon originating from a special substance (innocence/alchemy). The humorous moments are very similar too in terms of animation.
Both have a dark leader trying to take over the world and asecreat organization using mystic wepons to stop him.