Ontario isn't the only province where supporters of electoral reform are active. This article ran this week in Montreal's The Chronicle.
In the 1998 Quebec provincial election, first-past-the-post handed the Parti Québécois a majority government (76 out of 125 seats) even though it trailed the Quebec Liberal Party in the popular vote (the PQ won 43% versus the Liberals' 44%).
Quebec is one of six provinces in recent decades where the second-place party in the popular vote won the most seats, thanks to first-past-the-post. It happened in Ontario in 1985 when the Tories won the most seats even though they trailed the Ontario Liberals in popular support. It's also happened in Newfoundland & Labrador, New Brunswick, Saskatchewan and British Columbia.
Mixed Member Proportional would correct this flaw in our current system, ensuring party representation matches its popular support.
The Chronicle article reads: "The Association for the Protection of Democratic Rights (or APDR) has launched a lawsuit in Quebec Superior Court through which they hope to invalidate the current system. The case, which is being argued by well-known Montreal lawyer Julius Grey, is scheduled to be heard in December next year. In a summary analyzing the current electoral system's faults, the APDR recommends the provincial government adopt legislation along the same lines as a proposal for electoral reform that is being voted on in a referendum taking place in conjunction with the upcoming provincial election in Ontario. The APDR is proposing a mixed-member proportional model entailing two ballots. One ballot would be for single-member districts, a second would be used to calculate each political party's support. One of the ballots could also be cast for candidates running in a single, province-wide, multi-member district."