Andrew Gilligan in today's Telegraph.
This was apparently the first London Mayoral preference question for the next mayoral election in nineteen months' time, asked of Londoners in a poll for three media outfits for London, and overall it put Boris Johnson ahead of Ken Livingstone by a full nine percentage points, at 44% to 35%.
Perhaps the most surprising aspect of this is that Boris was ahead in all age groups, even among the youngest of those eligible to vote.
Typically one finds that this age band (18 to 24) favours Labour and/or the left in general. The theory goes that at that age many people are idealistic but inexperienced and are easily persuaded that Labour/left politics are "fairer" and "for the poor". It takes many years to fully learn the truth, which probably explains why the Conservative party has so many older folk within its membership(!)
Whatever the reason, this is a good indication that Boris has made a positive impact on Londoners and that they have in many cases realised that he is the better choice. He's not perfect, but by golly he has been far, far better than his predecessor as London Mayor, and that seems to be widely recognised within the Capital, at all ages of voters.