All have been campaigning unofficially for weeks, making early policy promises while also trying to hit their rivals where it hurts, whether the broken promises of the Liberals or controversial positions held by Conservative Leader Andrew Scheer.
The poll also asked respondents to choose the best campaign slogan.
The Liberals have opposition research of their own and have already highlighted Scheer's socially conservative beliefs using snippets of old interviews and speeches.
Global News has confirmed that Prime Minister Justin Trudeau is expected to ask Governor General Julie Payette to dissolve Parliament and issue the writs required to hold elections in each of Canada's 338 ridings.
Further down the lineup, watch for whether Maxime Bernier can punch above the weight of dismal polling numbers to make his upstart People's Party of Canada an actual political force, and whether the Bloc Quebecois can recapture the attention of Quebecers after the party almost dissolved in a civil war.
The question of how Canadians are feeling about making ends meet is central, with the three main federal parties all focusing on promises created to make life in Canada more affordable.
"We have all of our candidates nominated. Our local campaigns are energized with volunteers". The Conservatives have pledged, among other things, to cut the federal tax on home heating bills, while just Tuesday, the NDP promised a tax on the super-rich to fund health care.
The Liberals had until this Sunday's deadline to call the election. Just 50 per cent of Greens, 42 per cent of New Democrats and 22 per cent of People's Party supporters were firm.
NDP Leader Jagmeet Singh, engaged in his first campaign as leader, will be in London, Ont. today.
Expect to see a lot of Singh in the Hamilton area.
But Quebec, where the orange star used to shine so brightly is a different matter.
The poll suggests the Liberals still have hope of picking up Green and NDP supporters, although that's somewhat diminished by the fact that the Greens and NDP are now more likely to trade votes.
During the 2015 elections, the Liberals took 40 of 78 seats in Quebec, beating expectations. Trudeau is to call the next federal election Wednesday morning.
Bernier will be alongside one of the People's Party's star candidates, Renata Ford, wife of the late Rob Ford, the populist mayor of Toronto whose brother Doug is now premier of Ontario. There are eight independents - including former Liberal cabinet ministers Jane Philpott and Jody Wilson-Raybould.
The Forum poll of 1,219 randomly selected Quebec voters found roughly one-fifth of respondents (18 per cent) would support the Bloc Québécois, while 9 per cent would vote for the Green Party and 8 per cent for the NDP.
Twenty-six per cent of respondents said they're likely to change their minds before election day on October 21, with supporters of smaller parties most likely to shift. Five seats are vacant.