I would love it if the judges chose Ellie's Paso and then Ellie chose her AS. I think there's a good chance the judge's will choose her week 1 jive or her week 2 foxtrot (twee styling and Vito out Vito'd himself with a weird gurning jumping step) though. I hope they don't pick her Samba from week 4. I loved her Paso and would be thrilled to see it again but she would be wise to pick her AS. Easier to get a 40 for as she got 39 I think and her dress was beautiful and Vito was in tails. It will appeal to a wide range of voters and they'll both benefit from looking great when the results are called out.
I hope the judges choose Layton's week 2 quickstep. It was a great dance, he can show he's improved and it's a ballroom. I expect he will chose his musicals week dance again or his AT. Layton also did a great cha cha and a great salsa and the judges may choose one of those. If feeling mean, they may choose his week 3 Rizzo dance (VW was it?).
Bobby may well choose his couples choice again. He did a good AS and may choose ballroom for his choice of dance after Shirley called him the King of Ballroom... judges will choose his samba again I think.
I know they can do dances from musicals week in the final as Helen did last year. Can they pick one of this week's dances again, do we know? I'm sure in the early days there was a cut off for repeating dances.