EKOS and Strategic Counsel polls differ strongly

The two most recent polls, one from EKOS and the other from Strategic Counsel, find very different results for the Liberals and Conservatives. EKOS, on the 16th, found the Liberals rising to 29.6% and the Conservatives dropping to 35.8% (a 6.2 point gap), while Strategic Counsel's numbers were 24% for the Liberals and 42% for the Tories (an 18 point gap). Liberal supporters will be hoping that EKOS is accurate, while Conservatives will be plumping for the Strategic Counsel poll:

Even more distressing, for Liberals, is that their support in Quebec appears to be weakening even further: the CTV/Global poll of Quebec voters shows the Conservatives at 31% and the Liberals at 12% (the Bloc still has a huge lead at 47%).

Sourced, as usual, from the Wikipedia page on the election.