How did you guys know that Duncan and Beth are in the final 2? Cause I read something from cakeentertainment.com and it says "Harold and Courtney have only just finished battling it out for the ultimate grand prize......." and it made me think that Harold and Courtney are in the final 2.

See for yourself:

http://www.cakeentertainment.com/flips/TDM/index.html

Is this thread really neccessary? I understand Courtney's not exactly a fan favorite, but what do you want to happen to her? Have someone pull a Carrie White on her or something?
But if they must, anyone but Duncan. It would have to be someone everyone least expects to do something like that. Then...
She's gonna fall BIG and LOOUUUUD! (Holds note for seven measures)

I think I'm the only one in existence who got the 'Big and Loud' reference.

Like I said, when they have her fall heavily influences who is going to beat her. People are constantly getting voted off - after a while, the choices of who can beat her get smaller and smaller. After this latest episode, Lindsay is out of the question.

I agree. It has to be someone least expected. I'll admit that having Duncan cause her downfall would provide a huge strain on their relationship, and thus brings a lot more drama to the show. But it would be too obvious. Before Lindsay's elimination, I thought of her to be the perfect candidate to knock Courtney down to size, like she did to Heather last year. But since Lindsay's no longer here, I would vote for Harold. Despite his tampering with the votes, and aside from Duncan, Harold has a bone to pick with Courtney. With Courtney as the overachiever and Harold the underdog, this would be his time to shine and his chance to get back at her. Although, the only time that I could see Harold having the right chance to give Courtney her comuppance would have to come from an unannounced moment (it doesn't have to happen in the finals, per se). Courtney would have to feel vulnerable or a moment of weakness for Harold or another underdog to trick her. Courtney could pull a Lindsay and vote herself off, but she would have to be completely sidetracked for it to happen.

...because it's very possible that remaining characters have the ability and motive to take revenge?

Of course, Courtney has already, in a way, caused her own demise. Her nasty attitude has caused a resentment of increasing intensity within her castmates. If she wasn't screaming at them, or bossing them around, or acting like a snob, do you really think they'd hate her as much as they do? No, of course not. If she was a little nicer to them, she wouldn't NEED to win invincibility every single round, as they would be less willing to vote her off. But now that she's gone ahead and made everyone angry at her, there WILL be attempts to knock her off the throne if she gives them a chance.

By the way, I would like to point out that Courtney is not invincible. She just happens to have a set of talents that have been particularly useful in recent challenges. For instance, she has both the physical strength and the insanity potential to destroy a hotel room. But, that simply means that a slight change in the nature of the challenge can easily allow another competitor to win. For instance, lets say that every competitor is trapped in an individual room. If the walls are strong enough, Courtney can't bust out of them. If there is a lock on the door out, then Harold can win. If there is delicious-smelling food right outside the room, then Owen can win. If the only way they can get out is by asking Chris nicely, then Beth can possibly win. All easily-manipulated factors.

...Shall we re-watch the episode?

No one disliked Courtney at the start of Ocean's Eight or Nine. They DID start to dislike her, however, when she started bossing them around and screaming at them. Then, as Courtney's Rules came through and Courtney's bossiness and whining slowly got worse, their dislike of her grew accordingly. So, I'm guessing that her bossiness and whining are what have caused the others to dislike her. It's her fault for digging herself into that hole, which is what makes her attitude her own demise.

And, honestly, I don't think Courtney is able to swallow her pride.

The locked room thing was just an example. The challenges are easily manipulated by the writers so that they can effectively choose a person to win. If you need more evidence for this, look at TDI. Despite the fact that none of them are particularly strong or smart, Heather, Gwen and LeShawna tended to ALWAYS win immunity. This needed to happen for plot reasons, so no one could vote them off. Now Courtney is winning for plot reasons.