Vancouver = Pleasant weather, gorgeous women, so so hockey.
Montreal = Cold winters, easy women, best hockey.
Toronto = Hot and muggy in the summer, cold in the winter, shitty hockey.
Out of the three cost of living is probably lowest in Montreal and the most expensive in Vancouver. I'm under the impression that the night life is better in both Toronto and Montreal, I dunno your choice. I'm not originally from Vancouver but considering the amount of Torontonians that live here I'd have to say this city isn't too shabby
