I don't hate anyone as hate is such a strong feeling that it's just not worth it. Especially on people you don't know.
I do find some annoying though but as I don't listen to the radio or read tabloids/gossip magazines I manage to avoid hearing about them. Unless I'm on here.
Ones that are a little annoying include One Direction, Katie Price, Peter Andre, Kerry Katona and any reality tv/famous for no reason "stars" like the people from TOWIE, BB or XF.