The Final has been won in recent years - IMHO - by the X-factor viewers who have no show to watch so watch Strictly for the first time.
They have no idea what they are watching so just vote for the celeb that most appeals to them.
Tweens vote in large numbers, which you can see in the profiles of the latter series of Big Brother on C4, when you just got hunky young male boyband types or sweet girlies as winners.
That fits the profile of every Strictly winner since Kara, although in some years they have also been the best dancer (Harry, Louis etc)
Tweenies thought process ...
Frankie - she is like so perfect she is pop star and a mum and married to a footballer, I love her so much she is like, my hero, i want to be like her so much
Caroline - it says she is a TV presenter but I've never seen her in anything. It says she hosted X-tra factor but I don't remember her doing it, I thought the current presenters had always done it
Simon - never heard of him - was he in some band in 60's or something - he's like SOOO old
Mark - he goes out with that one who was Tina from Corrie. Whatever happened to her ? I used to like her. It says he was in Towie, but that cant be right or he would still be in it.