Ok - that decides me on 2 counts
All 3 are great dancers but
a) louis was the only one where when it started I found myself holding my breath that he didn't make a mistake i.e. the only one I found myself really caring about - of the girls had made a mistake I'd have thought it was "a shame" but without any real emotion!
b) Craig's miserly 9 for him was unnecessary!
So I've voted for Louis 
Guess we have quite a wait now until the phones close and the votes are counted
Wonder what the group dance will be like?