Well I do hate the program but I'll cast my predictions here anyway....
And I'll group them by who they are most likeley to fight with....
A devout Christian
A Dumb Atheist (Purley to make the rest of us look bad

)
A devout Muslim
An open minded Liberal (OT PC'ness is a must)
A very conservative snob
An animal rights activist
A biggoted bimbo who is too stupid to form a decent debate but who will try anyway (Male or female)
A post sex change woman now living as a man (just to through everybody off)
A token Black women
A convincing post sex change male now living as a woman (Not like that man beast from last year :p )
A 'Pretty' Boy who loves himself far more than he could ever love anybody else
And Nigel, I dont think thats his name but it seems fitting, hes the guy whos there but doesnt really seem to know why.