Joe -- in answer to your question, Pollara conducted a poll last year on behalf of the Toronto Port Authority. The very questions you ask were probed and are posted our website. Here is an Aug. 4/09 press release on a couple items of note:

"Majority of Torontonians want port operations - including Toronto City Centre Airport - to stay out of City of Toronto's control

TORONTO, Aug. 4 /CNW/ - The Toronto Port Authority (TPA) today released the results of a public opinion survey conducted by the national public-opinion research firm Pollara Strategic Insights.
The survey was conducted July 6-7, 2009, sampling 500 residents who live within the City of Toronto. In addition to probing the opinions on the performance of the TPA, the survey touched on a wide variety of topics, including attitudes toward the revitalization of the Toronto waterfront, and the Toronto City Centre Airport (TCCA). Porter Airlines and several other aviation enterprises operate out of the TCCA.
In recent years, a handful of local and federal politicians have demanded that the TPA be abolished, with the City of Toronto taking over its duties, including the operation of the TCCA. According to the Pollara survey, a majority of Torontonians (58%) oppose the concept of devolution to the City. Only 14% of respondents "strongly supported" the idea, and 17% "somewhat supported" the idea.
"We were interested in what our stakeholders had to say about this proposal, so we added the devolution question to our annual summer poll," said Mark McQueen, Chairman of the TPA's Board of Directors. "The public reaction was compelling, and serves as a guide for those of us involved in the economic future of Toronto."
The survey further probed Torontonians' attitudes toward the City of Toronto taking over the TPA and the TCCA by asking if they would be more supportive or opposed to this scenario if it meant removing Porter Airlines from the TCCA. Under that scenario, public opposition to devolution grew by a ratio of 4-to-1 against the devolution concept: 53% of Torontonians were more opposed to devolution, while 12% were more supportive."

Mark McQueen