Well, this is Sasuke Uchiha, I do not think he needs some sort of description. He is my favorite character from Naruto series.
I always liked the character that are serious, with black hair, black or red eye and Sasuke is a great example.
Just as Vincent Valentine from Final Fantasy series, Shadow The Hedgehog from Sonic series and Ulquiorra Schiffer Bleach anime character, despite being Ulquiorra colors, green with black, it still has black hair.
There are many other characters with these characteristics, so they always end up becoming my favorite characters, whether heroes or villains.