Ooh this could be fun. I need an excuse to get my bitch out. I won't bother mentioning Justin and Scott, the two thugs who got booted out. They were both pretty much trash who got what they deserved!
Adam (Big Brother 13)
Very different from most on this list, because fundamentally, Adam seemed nice enough. Beyond that though, he sucked ass as a houseguest. Less backbone than a cowardly squid, and to top it off, completely deluded about his popularity and skills as a player. Softly put, he was shit. Plus, that whole "ROAR ROCK AND ROLL" personality bullshit was super annoying and was old before the first episode finished. If he gets his wish and returns for an AS, shoot me!
Cowboy (Big Brother 5)
Similar to Adam really - pretty much a nice a friendly person, but probably the only player that strategywise was more dull and boring than Adam. A massive non-entity of epic proportions, and such a wet blanket of a personality to boot. How the hell he has been given two shots to potentially return to the house is beyond me, and I thank my stars that both times he was unsuccesful - he brought absolutely nothing to the series beyond the Nakomis storyline they gifted him, and even she couldn't be bothered to make much effort with him.
Daniele (Big Brother 8&13)
First time around, I couldn't stand her because she was a smarmy whiney smug brat who piggybacked off her daddy to the final. Then she returned, and I started to like her, only for her to prove how sucky a player she always was, and how every negative thought I had for her from the previous season was still there. So desperate to be seen as a cool chick, but she's just as catty and childish as those she tried to look down on. She did make last season fun though, perhaps her only positive for me.
Dick (Big Brother 8)
My hatred for Dick has somewhat lessened over the years, but his behaviour in the BB8 house was simply disgusting. I could go into all the details, but we've been there a million times before. The irony is, I actually think Dick seems like a fun guy to be around outside the house, but it didn't excuse his behaviour. It was a shame to see him go the way he did in BB13, but I imagine he'd have followed his daughter in reaffirming why I disliked him in the first place anyway!
Enzo (Big Brother 12)
Total waste of space from the off. Carried by his alliance throughout the entire game then lauded as a master gameplayer because of it? Seriously? It really bugged me how everyone on the show fawned over him in the final - the guy was never making it to the final two because of his Kathy-rivaling challenge patheticness, and because Hayden (and even Lane) was far to sharp to ever take him to the final. Really really couldn't stand him.
Jeff (Big Brother 11&13)
Now Jordan I liked, but this guy was a real dick. I can't say I ever particularly warmed to him, but early in BB11 I rooted for him because I liked his alliance. Beyond that though, I've resented every day he spent in the house. Aggressive, homophobic, a bitter loser and just generally not a nice guy. How the hell he was pushed so heavily as a fan-favourite is beyond me, and turns me kind of sick. The only real word to describe him is "oaf" - he's just dumb, and not even in an endearing way like his girlfriend. Jordan could do so much better.
Jennifer (Big Brother 6)
I actually had more time for the Nerd Herd than most. I wasn't rooting for them, but I didn't find them as bad as others did. That being said, I seriously wanted to shove a boot in this girls face. For weeks she was irrelevant in the background, then she won HoH. Regardless of what people say, I didn't have a slight problem with her nominating Kaysar - he was a fool in the HoH, and deserved his fate. My problem with Jen stemmed after that, with her total bitch behaviour after her stint ended. By the time she got to the jury house, I actually couldn't stand to see her. I'm glad she was despised - she was a right cow!
Jessie (Big Brother 10&11)
Contrary to what Grodner thinks, this guy was never a good housemate, or good entertainemnt. In his first series, he was just a total moron, and despite seemingly growing up a lot since then, and actually seeming to be a lot more mature in his second stint, he still was just awful to watch. The fact that he seems to willingly embrace the character he was portrayed as year after year does nothing to endear me to him - he's now in on the joke, but it was never funny in the first place. Why Grodner thinks we want to see him every year is just beyond me.
Mike Boogie (Season 7)
In BB2, I had little opinion of him, but I seriously couldn't stick him in Allstars. Such an odious little personality, so desperate to be seen as fun and cool, when it clearly wasn't a natural fit. Just a real sleazeball who needed a good wash. Plus, I don't think he was ever a good player - Chilltown was never about him, and I actually think Will should be pretty pissed that Boogie has leached off his genius. You know it's slim pickings when your devastated that
Erika is the losing finalist in a series.
Ronnie (Big Brother 11)
In a series of hatable personalities, this one really took the buiscut. Watching his masterplan crumble so spectacularly in the second week was excellent to watch, and his week spent cowering in the HoH because he was scared of Russell shouting at him was golden. It still breaks my heart that my lovely Laura (

) was the sole victim of this tool's dreadful strategy, but at the very least she managed to set the wheels in motion of his boot before she left. LauraLove!!!

Oh and also, just a really nasty piece of work too. What did Michele ever do to him?
Is that 10 already? Special mentions to cult leader midget Eric, skanks April & Ollie, overated jackass Memphis, the entire cast of Season 9 bar Sharon, sourfaced Natalie - worst athlete ever, and of course, everyones least favourite grandad Jerry.

That was to much fun.