I got all the answers:
Clinic exposure: every single Canadian school is trash compared to US in clinical exposure amount across the board , and Western is definitely no exception. You may get more exposure to complicated cases (except for ortho) at Western but it overall exposure will be low.
Opportunity after graduation: well if you want to practice in Canada it saves you from writing 2 boards than if you went to a US school, other than that I don't think it matters much which school you went to. With regard to jobs, the connections with sales reps/part time dentists may make it eas