Watched it last night and I am dissappointed.
For Bruno to say that he scored Emma high in order to compensate for the other scores, and thereby ensuring that she was not lower down the leader board, is unscrupulous.
Each judge should mark within their own field of expertise. If Len scored low, it would have been because of a lack of technical ability. There wasn't a lot of Cha Cha going on, just wriggling and pouting for most of it. Performance-wise, yes Emma did 'sell it'.
A few people have commented that this sort of marking goes on all the time. Lets not get into how the scoring goes in real competition. It doesn't. In a real competition none fo the judges know how the others have scored, so each scores according to his/her internal benchmark. Mind you, favouritism is rife but no judge scores higher to compensate for lower marks given elsewhere. Only on TV when one judge decided he's going to try to show another judge up and get the audience on-side, does this sort of thing happen.
In my opinion, Bruno didn't do it for Emma's sake, he did it because he wanted to be the one who got the audience cheering - he wanted to be the nice judge on the night, rather than the objective judge.