Not that you asked, but:
Flo (The Amazing Race 3) UHG... It may be that she's so fresh in my mind, but she got on my nerves.
Krista (Big Brother 2) She was very pathetic. I dodn't hate her though. Just felt disgusted by her and sorry for her.
Jerri (Survivor 2) Didn't watch
Chiara (Big Brother 3) She truly got on my nerves. I didn't like much of anything about her, but she didn't get under my skin as much as Flo did. Interesting Chiara was slutty, and definitely gave women a bad name, but she's pathetic.
Danielle (Big Brother 3) Hmmmm, she was annoying as all get out. She's close in to the top because of all the darn "Devil" crap she was saying.
Shannon (Big Brother 2) Close call here. Maybe it is because she managed to fade from the little bit of limelight she had, but she doesn't bug me too much any more.
Nicole (Big Brother 2) I never minded Nicole I wouldn't hang out with her, but over all she doesn't make it to the top of my list.
Ghandia (Survivor 5) Ya know, if she hadn't come off the island saying she was trying to do what she thought wouldf get her farther in the game, she may, MAY have been able to garner some sympathy from me, but as it is she's a nasty skank.
Lindsay (Survivor 3) Didn't bug me too much
Vecepia (Survivor 4) Didn't bug me nearly as much as she bugged most other people.
So, I had to go with Flo.