I feel like this season we might get a very unexpected winner (or more like undeserving) like Juhi in season 5 .Winner could be one from kero as other contenders are somehow either ruining their games or just too flawed and i dont think the channel will want someone like that as the winner , so might as well make someone who is more 'clean' to set a good example , just my feeling .
Keith have a good chance. Infact he is only sensible guy in the house right now. Just like rahul Roy won it in BB2 2 or 3(i dont remember exactly), and Keith is very much similar to rahul Roy inside the house.
I am also getting that feeling. In season 5 no-one ever expected Juhi to win but she did as others were more flawed though much more entertaining. This year it is similar. It might be Keith this year.