His party is polling ahead of its rivals and his approval ratings are miles ahead of the prime minister.

But do Canadians think Justin Trudeau is the better man for the job?

Every week, Nanos Research polls 250 Canadians on their views of the major parties and their leaders and releases a report compiling the rolling results of the 1,000 Canadians polled over the preceding month. Much of the focus is usually on what Nanos calls the 'Party Power Index', a score derived from a combination of questions on party perceptions.

But tucked away at the end of the report is the question of who Canadians prefer as their choice for prime minister.

The latest rolling poll, including responses taken between Dec. 6 and Jan. 3 and released earlier this week, gives Trudeau 29 per cent support on this question. That puts him two points ahead of Stephen Harper, and 10 points up on NDP Leader Thomas Mulcair. Elizabeth May comes in fourth at five per cent.

That is a very close margin between Trudeau and Harper, but since Nanos is polling every week we get an indication of how consistent that marginal advantage has been.

From August to the beginning of November, Trudeau polled ahead of the prime minister. For a few weeks in November, Harper had the slight advantage. But in the last three weekly reports from Nanos, Trudeau has been at the top of the list.

The evolution of Mulcair's numbers on this topic is, perhaps, more interesting.

From August to November, only around 16 per cent of Canadians said the NDP leader was their choice to be PM. But Mulcair's numbers began to increase in November. By the end of the month, 20 per cent of Canadians thought he was the best man for the job.

This spike coincided with the NDP leader's strong performances in the House of Commons, where he grilled Harper on the Senate scandal. Though his party did not see a bump in the polls at this time, it appears it did improve Mulcair's standing in the eyes of Canadians.

In addition to this question, Nanos also asks whether Canadians think each leader has the qualities of a good leader. There is not much difference in their responses, with Trudeau and Harper both at 52 per cent in the last report and Mulcair at 48 per cent.

But here again we see the possible influence of the Senate scandal. Mulcair's numbers improved from 43 per cent to 51 per cent at the height of the controversy, while Harper's score dropped from 57 per cent to as low as 48 per cent. Though their numbers have snapped back a little in both cases it does appear the two leaders' handling of the scandal has had an effect. Canadians now see Mulcair better and Harper worse than they did at the end of the summer.

We will see in the coming months if this perception is settling into the minds of Canadians or whether it was a momentary change of heart. If the events of the fall of 2013 have a lasting effect on the standing of Harper and Mulcair, that could have important consequences on how things turn out in the fall of 2015.

Éric Grenier taps The Pulse of federal and regional politics for Huffington Post Canada readers every week. Grenier is the author of ThreeHundredEight.com, covering Canadian politics, polls and electoral projections.

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  • Justin Trudeau, leader of the Liberal Party of Canada, sitting on a bench in Lafayette Square across from the White House before a television interview, Washington, D.C., Oct. 24, 2013. Trudeau was on his first trip to Washington to attend a policy conference held by The Center for American Progress where he sat on a panel titled "Global Perspectives" with former Australian prime minister Julia Gillard and former U.S. secretary of state Madeleine Albright. THE CANADIAN PRESS IMAGES/Louie Palu

  • Justin Trudeau, leader of the Liberal Party of Canada, sitting in the lobby of the St. Regis Hotel, Washington, D.C., Oct. 24, 2013. Trudeau was on his first trip to Washington to attend a policy conference held by The Center for American Progress where he sat on a panel titled "Global Perspectives" with former Australian Prime Minister Julia Gillard and former U.S. Secretary of State Madeleine Albright. THE CANADIAN PRESS IMAGES/Louie Palu

  • Justin Trudeau, leader of the Liberal Party of Canada, sitting in the lobby of the St. Regis Hotel, Washington, D.C., Oct. 24, 2013. Trudeau was on his first trip to Washington to attend a policy conference held by The Center for American Progress where he sat on a panel titled "Global Perspectives" with former Australian Prime Minister Julia Gillard and former U.S. Secretary of State Madeleine Albright. THE CANADIAN PRESS IMAGES/Louie Palu

  • Justin Trudeau, leader of the Liberal Party of Canada, sitting in the lobby of the St. Regis Hotel, Washington, D.C., Oct. 24, 2013. Trudeau was on his first trip to Washington to attend a policy conference held by The Center for American Progress where he sat on a panel titled "Global Perspectives" with former Australian Prime Minister Julia Gillard and former U.S. Secretary of State Madeleine Albright.

  • UP NEXT: Memorable Trudeau Photos

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    Justin Trudeau & co. making faces.

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    Justin Trudeau splits his pants while pushing the "scrum machine" in support of Prostate Cancer Canada in Toronto Thursday, July 21, 2011.

  • Don't Shoot!

    Justin Trudeau gets his geek on at Montreal Comiccon in September 2012.

  • So Long 'Stache

    Justin Trudeau has his moustache shaved off to raise money for the Judy LaMarsh Fund, that supports female candidates, at the Liberal Party convention in Ottawa on Saturday, January 14, 2012.

  • Coming For MacKay

    Minister of National Defence Peter MacKay (left) is chased by Liberal MP Justin Trudeau in a motorized wheelchair during a wheelchair race relay on Parliament Hill in Ottawa on Wednesday, May 12, 2010. Twenty-five MPs and senators used a wheelchair for the day in support of the Canadian Paraplegic Association's Spinal Cord Injury and CPA awareness month.

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    Justin Trudeau all dressed up for the Montreal Movember Gala in 2010.

  • Get Him!

    Pierre Trudeau's sons, Sacha, left, and Justin, tackle their mother's paperboy in Ottawa in this undated photo.

  • 'Family... And A Cow.'

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  • Be Honest With Me, Who's Cuter?

    Justin Trudeau strikes a pose with an adorable baby.

  • A Very Furry Christmas

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  • Game On!

    Former Liberal MP Ken Dryden, left, and Justin Trudeau play table hockey as they visit Sun Youth, a community organization, Monday, Jan. 14, 2008 in Montreal.

  • Yanking Their Chain

    Then-prime minister Pierre Trudeau, left, watches as his 11-year-old son Justin swings on a chain during a tour of an old fort in the Omani town of Nizwa Dec. 2, 1983. Trudeau and Justin spent the day visiting the towns of Jebel and Nizwa 165 kilometres south of Muscat.

  • Rocking Out

    Justin Trudeau in Muskoka, Ont.

  • YeeHaw!

    Liberal MP Justin Trudeau, centre, has his cowbay taken by his son Xavier, 4 years-old, while his wife Sophie Gregoire, second from left, holds daughet Ella-Grace, 3 years-old, while they attend the party's annual Stampede breakfast in Calgary, Saturday, July 7, 2012. This is the 100th anniversary of the Stampede.

  • Like Mother, Like Son

    Eleven-month-old Justin Trudeau, urged on by his mother Margaret Trudeau, crawls up the steps of an aircraft in Ottawa on Dec. 5, 1972 to meet his father, then-prime minister, Pierre Trudeau on his return from Britain.

  • Cutting A Rug

    Justin Trudeau dances with wife Sophie Grégoire before his speech at the Liberal showcase on April 6, 2013.

  • Next: What Is Pierre Trudeau Doing?

  • Magician?

    Prime Minister Pierre Trudeau, wearing what someone called his "Mandrake the Magician outfit," walks down the grandstand steps to present the Grey Cup trophy to the victorious Montreal Alouettes in this Nov. 28, 1970 photo.

  • Hey, It Was The '70s

    Pierre Trudeau leans over to kiss an unidentified young lady to the seeming surprise of his recent bride Margaret. Trudeau and Margaret spent Saturday March 27, 1971 at maple tree farm here near Montreal at a sugaring out party.

  • Fur Wasn't Always Controversial

    Pierre Trudeau accompanies Margaret Sinclair, at the annual Governor General's skating party for members of Parliament in Ottawa Jan. 14, 1970.

  • Ditto For Seal Hunting

    Pierre Trudeau looks through the scope of his rifle while on a seal hunting trip in Baffin Island's Clear Water Fjord, July 29, 1968.

  • A Leg Up

    Pierre Trudeau shoes off his frisbee catching style while waiting to board his plane in Vancouver May 16, 1979.

  • Calisthenics Were Still Cool

    Pierre Trudeau had no trouble keeping himself occupied during a break from a boat trip down the Northwest Territories, Nahanni River, Monday Aug. 4, 1970.

  • The Outfit...

    Pierre Trudeau takes a wary look at an ice crevice, decides to chance it and makes the leap successfully during a midnight seal- hunting expedition at Clearwater Fjord in Canada's Arctic, July 29, 1968.

  • When in France...

    Pierre Trudeau receives a kiss from his wife Margaret during a tour of St. Pierre, France, Aug. 1971.

  • Running Man

    Pierre Trudeau in Guayana 1974.