My following advice is based on what I've seen and heard from my
contacts who work in investment banking and consulting in New York,
career services at some of the universities on the list, online
search, and discussion with various faculty members.
Firstly, I have been told that most of the Canadians at the NY firms
are from UT (Rotman), Queen's, UWO (Ivey), and McGill.
While they are all excellent schools, if you know you want to work
outside of Canada, I would recommend the UT as your first choice and
McGill or Queen's as your second choice due to the broader alumni
network and greater recognition in the US. While Queen's is not as
well recognized in the US as Rotman, it has been ranked the top
business school in Canada by BusinessWeek and I personally know
several business students graduating from Queen's who have landed
positions in NY at bulge bracket investment banks.
Another very attractive option (though extremely competitive) is the
Queen's-Cornell Executive MBA program. Upon completion of the 17
month program, you receive both Queen's MBA and Cornell MBA.
Certainly Cornell's ivy league reputation will take you far in landing
the job of your choice.
I hope this has helped and please feel free to ask for any clarification.