I'm quite new to anime, I was introduced to a few animes a while back ( not counting watching a couple as a kid such as Dragonball + Dragonball Z), I enjoy anime with some realism behind it and a sense of mystery. I quite dislike how in quite a lot of shows the viewer is "all knowing" and the characters are clueless, its very enjoyable to be surprised by a plot twist that gives depth to the storyline. An example of this is Mirai Nikki, you just do not know whats going to happen until it happens.
The sense of mystery mixed with a variety of personality-rich characters are my favourite.
Will update the rest later need to run to the shop and get Dr Pepper before the shop closes.