Would you take a £1m lump sum or £1,000 a week for life?

It's the sort of theoretical question you might discuss at the pub with your mates. If you won the lottery and had the choice, would you pick a £1million lump sum, or take £1,000 a week for life?  Pollster YouGov posed the question to 7,000 Britons recently, and it is fair to say opinions are…