Hot spots of Canada: passing through rural cities at night in Ontario. Northern Ontario, specifically in between rural settlements. Trans-Canada highway in Saskatchewan, Alberta and wee parts of Manitoba near Winnipeg and Brandon.
Sounds like a bad idea. I'd get pulled over before I left the province by the provincial cops who aren't particularly friendly.
Bad parts of hitchhiking in Canada: Wawa. Southern Ontario, Thunder Bay, Regina, Calgary. Edmonton.
I could either go to Vancouver island, which is fairly safe or risk the yellowhead highway up to Northern BC in comparison to an expensive ferry from Port Hardy to some ocean city I never visited.