I don't really hate them, but these people/characters really annoy me:

Celebrities

Britney Spears, Paris Hilton, Nicole Ricci, Hilary Duff, Daman Wayans, Ray Romano, Barbara Striesand (I'm not sure how to spell that), Michael Moore, J.Lo, Kirsten Dunst, plus any soap opera actress (except Kirsten Storms).

Characters

Kagome (Inu-Yasha)
Chichi & Bulma (DBZ)
Rose (Full Metal Alchemist)
Lisa & Marge (The Simpsons)
Ray & Debora (Everybody Loves Raymond)
The wife on George Lopez (whatever her name is)
And many, many parent characters.