I don't think it's always politics, or even a fix like some might claim (although I have seen some absolute robberies) it's probably more fighter bias.

I find if I'm watching a fighter I like the look of, even if it's one I don't know, I seem to notice the stuff they do well easily. So if I was scoring they would have a clear advantage. I think that sub conciously judges just like certain boxers or styles.

You could have picked a few better examples! Haye/ Valuev only ever had one winner. The robbery there was the fight itself!