You should choose Bishop’s University for Commerce Bachelor. In North America, it is one of the best universities for Commerce. Bishop’s team often wins NIBS Worldwide case competition. The academics are great. Due to the small batch size, it’s easier to get mentors. Bishop’s University graduates earn around $146k.
Due to these factors, Bishop’s University is a better option.
If you consider these two in terms of Canadian standards then both universities have very reputable business schools. However, Bishops University's William's School of Business is unheard of outside the english-speaking community in Canada. So, if you’re not going to look for work in Canada alone, then you should definitely go for a better known university which has a name outside the country, especially in the states. Plus you’d also need to be well versed in French at some point in Sherbrooke if you do go for Bishop’s.
On the other hand if we look at Concordia, its John Molson School of Business is among Canada's top 10 business schools. It has better placement opportunities with its graduates earning 46,000-59,700 CAD on average after completing their studies in a variety of fields. While students from Bishops have regular winners at NIBS worldwide case competitions, it is still a university only prestigious in Canada. But still, its small size may be seen as a plus point for those who need to find a mentor. You will find these small classes more interactive and the professors here are more than happy to help you out whenever you reach out to them. Thus it is safer to go with Concordia which will offer you a brand value as well as great opportunities through its industry connections.
Here is a brief comparison of both your options:
These are the salary statistics of Concordia University’s undergraduates for the year 2019:
While Bishop’s University is old and reputed in Canada, Concordia University has more program options, lower tuition rates, higher international population and international reputation.