post the most annoying animê charictor and why

Sasuke from Naruto.
At first I honestly liked his character, he was a lonely boy who sought revenge on his brother for killing his clan. After certain events unfolded he managed to kill Itachi and knows the real reason for his past. I can't say the rest because it is a spoiler.
TL;DR: He's a Douchebag.

I also find Sakura a bit annoying, but I think she gets a lot mais hate than she deserves. The most annoying character I've seen is excalibur from soul eater. Every episode about him meade me want to kill myself and pretty much pissed me off for the rest of the day. I usually don't hate characters because there annoying, and a lot of characters that some people find annoying don't bother me at all, but I absolutely can't stand excalibur. I was seriously hoping someone would kill him. Which is kind of surprising because that was the first time a character annoyed me so much I wanted them to die.

Yuka Minase from 11eyes.
At first,she was all right,seemed like the good,caring kind of girl you usually see. Then she gets way to over jealous because her friend was helping her other friend (note,she was a girl.) So,she ended up turning into this yandere like chick,who doesn't give a crap about her friends anymore and just focused on that boy,she even took off her clothes and rubbed herself on him. Including the fact she put a razor in one of her friend's tea,I was surprised and found she was taking stuff too far. Its fine to be jealous,but what she did was very unnecessary

this...X(

There are a lot I can think of but I will go with the first one that comes to mind.

Nina Einstein from Code Geass
At first, I felt bad that she was getting so much hate on her because I felt I could relate to her. When she started to obsess over Euphemia is where I drawed the line and thought she was taking things too extreme. Then there were the F.L.E.I.J.A. (That acronym sounds like a Spanish word to me. XP) incident and what she did to the mesa, tabela (which highly disturbed me). Then her whining and crying and ugh. I found her to be one of the many useless side characters in Code Geass and definitely the most annoying female character in the series as a whole, in my opinion.

The first that came to mind was Sayaka Miki form Puella Magi Madoka Magica. At first I liked her. Around the segundo episode she started getting on my nerves a little. She started atuação like she was amazing and such a big shot.

Her wish was horrible. I'm not saying it wasn't a kind thing to do, but it wasn't smart. She needed to think for a moment. She was giving up her soul to fight witches and she spends her wish on a boy. It seemed like she expected him to he grateful to her and that he would go out with Sayaka-chan.

Honestly, I'm glad insanity got to her. She was stupid for not cleansing her soul gem. She was told to cleanse it or else she would turn into a witch but she chose not to. Why? Because the boy liked someone else.

She was not smart at all and she seemed like she had a huge ego. I could not stand her.

Just my opinion!