Northwestern Econ vs Cornell SHA vs USC Marshall and few Canadian schools.

I'm currently a Canadian senior looking at my offers, and I'd love some input on where I should attend. I'm interested in banking/consulting, but I'd have to pay $80k a year for Northwestern, Cornell and USC. I'm leaning towards Northwestern slightly over Cornell because of its location and student life, but I'm also definitely considering Canadian schools. I was accepted to McGill, Toronto (Rotman), Queen's Commerce and Richard Ivey AEO–all of these Canadian schools would be much cheaper with a tuition of $10k a year. Do you guys think it's worth the $400k to go to Northwestern or Cornell down the road? I'm also considering taking a gap year to reapply to some top targets like Harvard and Wharton. Thanks in advance