What's a really good anime that I should watch?

Just to say, I LOVE all those animes as well. It's hard to recommend you one I've seen because you've seen more than me. I've heard that Durarara!! is a pretty good one. I also like Black Butler or Kuroshitjusu I believe. From this list I don't think you'd like Vampire Knight or Bamboo Blade. Or any other school ones like Special A. I don't know if you'd consider trying the anime GA: Geitjusuka Art and Design Class. It's a very humorous 'slice of life' anime and it's only in English Subs. I don't know what else I can recommend however. Hope this helps?