Hmm go watch tokyo ravens its slow at the start but its gets better.

Lord marksman and vandis
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Do you have a list of what you've watched, and even more so of what you liked? I can't really recommend anything that would best suit you if I don't know what you have seen and liked. Campione! is good, Deadman Wonderland is good, just two different categories, and someone who likes one might not like the other. We need more info to help more buddy, just HMU, I've seen tons.

I've pretty much seen a thing or two from every genre, and when I say that I mean every genre.

Rainbow: Nisha Rokubou no Shichinin (favorite anime, its about a few boys in prison and it teaches you a lot about friendship and tough times)

Another (very good mystery, gory anime its definitely worth a watch)

Freezing (Action, fighting, ecchi, harem anime. Theres something for everyone in that one).

BTOOOM! (Action, fighting, survival anime with a sword art online feel to it as the players fight to the death to live).

Gantz (older horror anime with some gore, its a good watch).

Claymore (Fighting, gory anime with a twisted plot, but its all good).

K-On or Lucky Star (I put these two together since they're both slice of life, and a good comedy to watch).