I don't really get the 'they won't offend anybody' or 'they're inoffensive so they won't offend the public if they win' tag that you've literally just given to every winner that you've chosen.
Like I doubt a Nadia win will offend the public nor would most others that you've given second place to just because of fear of the public being offended.
Especially when you've chosen Siavash (someone who broke the fundamental rules of the game and refused to nominate on several occasions) as one of the winners of Big Brother. Or having a controversial housemate like Jade Goody 2nd place over someone like Alex who was far less offensive/divisive than she was.