I don't know about UofT, but for sure, Western isn't that picky about carving. RC and PAT both are fairly important though.
With your stats dackmonkey, I think you have a pretty good chance at UWO (the average GPA of their entering class was around 88% this year, I think). I don't know about UofT though, usually they don't extend interviews unless your GPA is above a certain number. I've found that most Canadian schools are all about the numbers. I mean, Western doesn't even ask for LOE's or anything other than transcripts and DAT scores.
Anyway, I don't think I'm going to bother applying to UBC or UofA - for an out-of-province applicant, my stats just aren't that stellar, I don't think. In Canada, I'm only going to apply to Western. To be honest, I don't think I really have a chance anywhere here. WHere are you guys applying in Canada?