haven't posted here for a while but I think that unless something really drastically bad happens with Christopher today or tomorrow then he is safe as houses.
It's blatantly obvious that the 2 with the most votes will be Matthew and Ash
I also think that Mark and Winston will get more votes than Christopher too - there are a lot of people who think Mark is unbelievably annoying and there are a lot of people who see Winston as one of the "lads" like Ash and find their behaviour awful (not to mention the people getting frustrated with him playing the dumb/blonde/essex card).
At the end of the day, the GBP more or less know Christopher won't go so even if some people wanted to vote for him they know it's a lost cause and a waste of money so therefore they just won't.
The people who will vote for Mark and Winston will probably know they won't go too, but will do it just to spite them, so they're not saved first. Christopher doesn't spark a strong enough emotion in people for them to spite him like this.
He's safe - don't worry. Also, it's a shame that we saw Mark and Christopher arguing on BBBOTS last night

(my 2 favourites lol) and sorry to say, I thought Mark did come across better
but it didn't seem like such a big deal compared to the other arguments we've had.