I'm gonna go for Ricky, Ali & Jade.
Jade may end up going through on Public votes alone in the semi finals, leaving Ali & Ricky to battle it out in the Dance Off. May sound absurd, but there's no denying that a lot of people aren't able to warm to Ali/Ricky. Jade may have been in the Dance Off, but it seems like her popularity is slowly growing as the weeks go on (I wasn't her hugest fan the week she was in the D/O, but I've grown to really love her since.)
The final two I wouldn't like to predict until we've seen the dances they do that week. Which reminds me: I've been meaning to ask, do we know whether we have a three way final again? Or is it two this series?
If it's a three way final, that means it'll be on December 12th, which seems early for the final. Whereas if it's two couples, it'll be the 19th, which would keep in line with the final being the Saturday before Christmas.