Q. I am not sure that you should group Canada with the US. All major Canadian universities are public, and the quality across the board is very consistent. Besides, if the adcom people are like the average Americans, it's highly likely that they have never heard of (or cared about) any Canadian universities.
A. I think you'd be surprised by the number of Canadians at top US universities.
Actually, I have worked w/ a lot of UBC grads in the past and they do very well in MBA apps. I feel that a UBC grad with avg marks and a GMAT 680 does much better than a NTU/NCCU grad with 720+ GMAT.
My feeling is that the top US schools are familiar with UBC, U Toronto, Waterloo and McGill.
I think the top Canadian schools are also fairly well-represented in Asia's banking/consulting circle, certainly more so than Taiwanese universities or 2nd tier undergrad institutions in the U.S.