Another poll has indicated Labour's poll lead is narrowing as the economy shows signs of revival.
It has slipped back one point over the past month to 35% - while the Tories have surged by four to 32%.
David Cameron also enjoyed a significant advantage over Mr Miliband on the economy, with 38% thinking he was most likely to keep UK plc growing compared to 24% who plumped for the Opposition leader.
However, Mr Miliband was considered more likely to keep energy prices down, by a margin of 38% to 17%.
Labour's overall lead was the lowest in a ComRes poll for 19 months. Other research recently has suggested the parties are neck and neck.
Ukip and the Liberal Democrats were both down one point on 16% and 9% respectively.
:: ComRes interviewed 2,001 adults online between Octobert 16 and 18. Data were weighted to represent all British adults and by past vote recall.