Whether or not you have a t-shirt emblazoned with shirtless Justin Trudeau riding a moose (this really exists), there's no denying that he's an interesting prime minister. Of course, there are varying opinions about him, as there are about each of Canada's twenty-three PM's. So who is Canada's favourite? This summer, DK is publishing a book called Our Great Prime Ministers, and before it comes out they want to know who is Canada's number one choice. Vote by poll here and see if you share the opinions of the majority of Canadians!