I think it will depend on how much the voting public care about dance ability versus like-ability when it gets to the final.
I think Frankie scores the highest on both categories. Pixie, Caroline, and Jake are all good dancers and are likeable - but not in the same likeability league as Frankie.
I think Steve has masses of likeability and if he made it to the final and managed a good performance, he could be in with a shot of beating the better dancers. However, I don't know if he can pull it off and, once Judy and Allison have gone and we're down to the good dancers, if he hits the bottom two he's out.
Mark has more likeability than dance ability but, like Frankie, he does well in terms of both. So, he could be in with a shot too.
I'd like to call it as Frankie to win. But, honestly, I could see Frankie, Steve, Mark, Pixie, Jake, or Caroline win - in that order of probability!
Of the others - Judy and Allison are dead certs to go. Sunetra is respectable as a dancer and Simon is a good dancer, but I don't think they'll get the public support required to reach the final. They've made it this far, but it's going to get tougher once Judy and Allison are gone.