Nick would have been pretty good, but he just wasn't intelligent enough to last the distance. Anna, runner up in BB1 on the other hand, was about as savvy and cool as they come. Our favourite skateboarding, ex-nun lesbian would have RULED!!
In the other BB series, the only ones who'd have survived would have been Elizabeth (clever girl, played the role of House Mother to perfection - just that no one voted for her in the final week), Sandy (escaped from the house by climbing over the fence in BB3, but an older, wiser type who had everyone sussed within 10 minutes of going in the house) and Jon Tickle from BB4 - Lord of the Rings Supernerd, slightly annoying but no one would imagine him to be a threat!!!