Technically he's 4th on average at the moment (and fading), but it's all so close you might as well regard it as joint second:
http://www.oddschecker.com/specials/...brother/winner
His position probably reflects that he's unlikely to be nominated as they all like him. Should he reach the final week, he'll also doubtless benefit from the 'mumsy' votes of women of a certain age. This phenomenol propelled that plonk Glynn all the way to 2nd in BB7.