[ Higher Education (University ) ] Open Question : U of Waterloo or U of Toronto for chemical engineering?

I got an offer from UofT last Friday (so late!), but I accepted my offer for Waterloo on June 2. However, the rankings show that UofT is #13 in the world and Waterloo is not even in the top 50 for chemical engineering, but Waterloo has really good co-op. Whereas, in UofT, you just for for 1 year with one employer. Which school is better if I want to pursure grad studies (Masters in chem enigineering or MBA) in states (MIT or UC Berkely). So please give me your advice on this by June 21.

Source: http://answers.yahoo.com/question/index?qid=20110615215851AABW27N

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