Jake's biggest danger is exhaustion. If he'd had no day job, I'd be pretty confident about him winning. My perception is that his standing ovations, for his faster dances, are more intense that anyone else's and that the buzz from people who just watch the show, not ITT etc, is about Jake - my guess is that the men are dropping like flies this year because Jake is hoovering up so much of the male vote. And he's got a few dances that should really suit him ahead. So much of it is who gets which dance when. I think that thing of someone (particularly a man) who lights up when he dances, who becomes someone else, is very magical to people, and he's a sweet man in the interviews as well.
Looking at the polls, youtube, facebook, etc, I think Caroline particularly, and Frankie and Pixie are all more popular than people are giving them credit for being. I think there is a paranoia on here about the women - you'd swear a beautiful woman had never won. Plus Kevin and Pasha are very popular (esp Kevin) and Trent is I think growing on people. Caroline could definitely win, particularly if Jake fades, but any of them could - they just need one wow dance that feels like something they couldn't do when they arrived. They have got the potential to do that. I think 2 out of the 3 will get to the final, not all of them, but whichever ones do certainly can win.
I also think people are underestimating Mark. He could easily be this year's Abbey and the b2 place is misleading. Plus now Thom is gone, I don't think he'll get anymore Superman-paso-type stupid costumes foisted on him. He understands reality TV, that's his job, and he knows how to do the interviews and the press better than anyone. (That isn't a dig, that's just saying everyone has to work to their strengths.) His dancing is suddenly improved and he hasn't, interestingly, mentioned his upcoming wedding yet...
Steve and Sunetra are doing brilliantly and are my favourites, but I've been looking at all the polls, etc, for reassurance that Steve will stay in a bit longer and I don't see the level of support in most of them for either Steve and Sunetra that would get them to the final. Of course that can change. Personally, as a smitten fan, I'm just happy if Steve is coming across well to people and can stay in a bit longer, I don't know if I'd vote for him to win.
I also don't believe that TPTB will want James Jordan at the final. They don't mind a bit of controversy now but when they've had enough of that, they just have to give Steve a rumba in a silly costume and he'll be gone. Nobody can get to the final without the show's support and I think they'll be wanting a Jake/Mark/2 out of FPandC final not Jake/Steve.
And I may be being really stupid, but I wouldn't rule out Judy staying, not to the final, but long enough to create some surprises in the b2.
Sorry for the essay.