Casually, it seems to me all 3 have hardly improved that much. Ricky looked semi-pro from the beginning as if he'd already had a crash-course, Ali looked all the time like she'd been a ballerina in Primary and Chris is still dancing like it's week 3.
I think the public are all too aware that Ricky has tackled this professionally and prefer a couple that approaches it all as good honest fun. The question is, do we really want Chris and Ola roving about on tour and on the chat show sofas as Strictly champions?- what counts more, dancing or personality?