By 'Favouritism' I'm meaning that his disability dominates the highlights, the producers are trying to make him as the poor blind man to get sympathy votes.

I agree Remy.

It's inevitable but not fair that his disability is dominating the show. For instance, what if Mikey tries to go from one part of the house to the other. If he falls over or something like that, then that incident will almost certainly make the highlight show eg. all the other HM's will come to help him, he'll get loads of attention and sympathy etc. It's just not fair.