From what I can tell, あなた is the basic formal version of "you" (like 私), but from there, I'm not sure exactly how to understand or use them. 君 seems to be similar to あなた but is used more in actual conversation. And then there's おまえ (or whatever the kanji is) which seems to be used in an either very informal or somewhat insulting (?) way. I don't know if these impressions are correct, though. It also extends to other, not listed, versions of the word.
Edit: Please stop telling me to not use "you". I am and was entirely already aware of that. I wanted to know the formality levels and implications of the different versions purely for comprehension purposes because I sometimes hear them used in conversation and media. I know there are differences like with the versions of "I", and I was curious what said differences are.
by tubby325