As much as I hate to say it, I can only see the WDC going to Alonso in Abu Dhabi. Alonso is too canny a driver and the Ferrari is just about quick enough to keep the Red Bull’s honest, so I think all of these philosphical debates about whether Red Bull should switch Vettel and Webber are completely irrelevant. Alonso will do what he needs to do, whether that is finish 3rd, 4th, or just finish, and he will win his 3rd WDC. This is of course assuming that nothing strange will happen like an engine failure or a racing incident involving 2 championship contenders.
Red Bull can talk about manipulation all they want, but the WCC and a bit of pride that they “did the right thing by letting Mark and Seb fight to the end” is all they are going to take from this season.
Edit: And I get the feeling that if Seb does back off to let Mark win the WDC, he’ll never let us forget about it.