Rachel by a long long way. I wasnt supporting either last year but Rachel had some really memorable dances (Rumba, Foxtrot, argentine tango...) that left a lasting impression. I struggle to recall anything Lisa did (I remember
that showdance but Im guessing not for the reasons she would want to be remembered

), I dont even remember her foxtrot which she apprently got 40/40 for. Being forgetable is not the sign of a brilliant dancer.
Plus Vincent really pushed Rachel, and tested her skills to the limit. That AT was very complicatd and she rose to the challenge.
And Zoe Ball was also miles ahead of Lisa (and Denise Lewis and I dare say Kelly Brooke)