What are your goals?

Also important: what's your residency status in the US?

My goals are to embark on an international career in the field of supply chain management. I am not a resident of either Canada or the US. I've heard that it's easier to get PR in Canada, is this true?

Without marriage or a huge REIT investment, it will be very hard to get even a work permit in the US - let alone PR.

To be fair, they could get an OPT visa after graduation, but to convert that to an H1-B after the year is up would be more problematic.

OK so what you're saying is that Canada is the better option if I'm looking to live and work abroad for more than one year.

Canada is not a better or worse option than US per se. It depends on what you value. US is a high risk and gives the theoretical possibility of a high return (RoI). Canada is a low/medium risk if you explore point based PR before/during/after your MBA. Correspondingly it's a medium return at most.
The Salaries in Canada are 30% less in many areas than US counterpart. The Canadian Dollar is also weaker.

Many US schools outside of top-20 see a drop in International students applications. Understandably so. These schools are sucker for diversity. So if you are NOT from India / China / SE Asia, you won't have to pay a premium on their avg. GMAT score.

If you are white / Caucasian let's say from EU, then few companies here may tend to interview you. If you are brown skinned and your name reads like Arun Kumar or Lee HiDong (Charles) then it becomes a tougher game. Of course, these are gross generalization. A lot will depend on your school's brand name.

Come back with your GMAT score, and do some research on post work permits in US (H1B / L1 / OPT) and Canada. Unless you were living under a rock, I am sure you would have heard about immigration issues captured in US news recently.

Thank you. Yes, of course I have heard about the immigration issues recently. I am not from India or China and my GMAT score is 710.

Another benefit of the schools in Canada that you're looking at is that they're a bit less competitive than the US schools you're interested in. For instance the average GMAT at Ross is 710+ while at Schulich it tends to be in the 650-670 range.