Which universities in Canada are known to be most challenging?

I'm considering applying to universities in Canada and want to know which ones have the reputation for being academically intense or the toughest to get through. Any info on their programs would be helpful too.

Based on several academic standards, the three Canadian universities that are frequently identified as academically rigorous are the University of Toronto, McGill University, and the University of British Columbia.

1. University of Toronto: The University of Toronto ranks highly both nationally and globally. It's known for intense academic expectations and is recognized for its world-class programs in fields such as computer science, engineering, and business. Students often comment on the high degree of competition and the comprehensive and in-depth nature of the curriculum.

2. McGill University: This Montreal-based institution is often compared to the Ivy League universities in the United States in terms of academic rigor. Particularly notable is its health sciences program, although arts and humanities are also highly regarded.

3. University of British Columbia: UBC is another globally recognized institution, particularly known for its programs in Earth and Marine Sciences, as well as Forestry & Agriculture. The UBC campus in Vancouver is regularly ranked among the top 20 public universities in the world.

While these universities are known for their academic intensity, it's important to remember that the overall difficulty and competitiveness of an institution can vary between individual programs. It's always beneficial to research the specific program you're interested in, as some programs at a certain school might be more competitive or more intensive than others.