EEEEE DURARARA!!
Sorry about that, but this anime is phenomenal, but before I begin, a word of caution, this anime took me until the end of the 11th episode to start actually liking, because that's when the story starts picking up.
I watched the dub and I would HIGHLY suggest that you do, because it includes many talented voice actors like Johnny Yong Bosch, Steve Blum, Yuri Lowenthal, and so many more!
This anime is awesome and I would love to score it higher than #5 on my top animes list, but I've seen so many it has to take a shameful place of #5. But DO NOT let that put you off, I would HIGHLY suggest watching this anime for the great characters, FANTASTIC fight scenes and great storyline.