Anyone wanting to predict the result of the 2015 election might like to take a look at this poll from April 30th 2010, just a week before the national poll.
How times change! This is taken from the excellent Political Betting Blog, a great site, well worth a visit run by Mike Smithson for many years.
A week later, the country voted 37% (Con), 30% (Lab) and 23.5% (LD).