Ontario's party leaders were out on the campaign trail for the last time on Wednesday, making key public appearances with less than one day remaining before voters across the province cast their ballots.

Progressive Conservative Leader Tim Hudak took reporters and Tory supporters to the construction site of a controversial Mississauga power plant which the Liberals have said would be cancelled.

Hudak has repeatedly derided McGuinty for promising to pull the plug on the 280-megawattt facility, calling it a crass attempt to grab votes.

"Look behind me," Hudak told reporters at the site. "I mean this is a living, breathing example of a broken Dalton McGuinty promise."

The Tory leader then promised to kill the construction of the gas-fired power plant should he form the next government.

He also dismissed recent polls suggesting the Liberals had taken the lead, saying the only poll that mattered would be taken on Thursday.

"Ultimately tomorrow voters are going to decide, and I am confident voters want change; they can't afford four more years of Dalton McGuinty," he told reporters.

Hudak made six stops between Toronto and Brantford on Wednesday.

Meanwhile, Liberal Leader Dalton McGuinty had just three stops planned, in Windsor, Strathroy and Oakville.

McGuinty also downplayed the polls on Wednesday, saying the final decision would be made at the polls on Thursday.

"There is a lot of game time left before the final buzzer, and no one knows what the score it," he said during a stop at St. Clair College in Windsor.

McGuinty was at the college to talk about the Liberals' promise to reduce tuition fees by 30 per cent for post-secondary students.

He said that only the Liberals would have people's backs in the event of another economic downturn.

The Liberal leader also declined to discuss how he thinks his campaign has gone.

The latest polls suggest McGuinty is poised to form Ontario's next government, giving opponents mere hours to drum up enough support for a last-minute shift.

An Ipsos survey released on Tuesday suggests the Liberals have seized 41 per cent support amongst decided voters, with the Progressive Conservatives holding 31 per cent of the decided vote.

The NDP has rallied 25 per cent of the decided vote, the survey said, while the Ontario Green Party holds three per cent.

A minority government would likely be formed if the division holds true on Election Day, giving NDP Leader Andrea Horwath's party an opportunity to play kingmaker in a split legislature.

Horwath wouldn't say which opponent she would prefer to see form the next government, stating the only "dance partner" she was focused on were the voters.

"I don't know how many seats we are going to win. For me it is not about that at this point, it is still about making sure our team continues on their momentum and that we are ready to pull out the vote tomorrow.

"Whatever choice the people make, I will be ready to work for them."

Horwath started an ambitious schedule off with a stop at a Toronto farmer's market, before moving on to as many as seven other appearances across southern Ontario.

Horwath has embraced the buzzword "momentum" since her performance at the Sept. 27 leaders' debate and said Wednesday was about "keeping the troops motivated" and having fun.

"There was no way I was going to take a day off or put my feet up," Horwath told reporters at Nathan Phillips Square on Wednesday. "I want to make sure I end this campaign with the same energy that we started with and with the same positive attitude and great momentum."

Horwath said she was elated by the news out of Manitoba -- where the NDP government was elected to its fourth-straight majority Tuesday night -- and said she wanted to keep that momentum going.

"I think they made a smart choice in Manitoba, and I hope the people in Ontario make that same smart choice," she said.

Analysts said the outcome of Thursday's vote could still yield a surprise despite the polls, if the Tories and New Democrats manage to get their supporters into the ballot booth in large numbers.

• Watch live election coverage on Thursday, Oct. 6 on CTV, CTVNews.ca and CTV News Channel and your local CTV website starting at 9 p.m. ET

With files from The Canadian Press