Off the top of my head (sorry if i miss some, im sleepy):

Mr. tacoX - my role model, my main man

Mr. Acer - real life friend

Mr. Hellmonkeys - one of the first i talked to

Mr. Chruser - i bug him when im bored

Mr. DaFrigginDoctah - a wealth of sexual wisdom

Mr. Shinto Katana - i bug him when im bored

Mr. Insolence - i forget which exact screenname he is...

Mr. Gsus - just met him

Mr. Wiccan][V][asta - just met him

Mr. Knight-Rider - i pwn him every once in a while

Mr. Valmar - we became friends after he hated me

Mr. Adrenachrome - yes, he switched sides as well

No one specific is on my hate list...so i'll pick someone randomly....how about...JiDDar! You..dumb..guy..!! I...hate you!!!1...You have..big feet...