I just finished watching Casshern Sins. And as a result I gained over 9000 love for anime as a subculture. So felt like making this topic.
From start to end it amazed me and captivated me. The sheer emotion that drips from every second of the anime is pure art.
So for me, at the top.
1. Casshern Sins
Following that, I also quite enjoyed the following:
Spice and Wolf (+2)
Decent ones I've seen:
What are your favorite animes, and which is your most favorite?