I don't think it is an "anti-toronto" sentiment so much as an "anti-urban" sentiment. BCers hate Vancouver ("metro-sexual valley people" that they are), Quebecers hate Montreal ("anglo/immigrant overlords") and Albertans hate Edmontons ("commie pinko Trudeau loving pinkos"). Calgary only avoids it by pretending to be rural, which is odd as that is one of the most white collar cities in Canada.
Back to my point though... while BC hates Vancouver, Quebec hate Montreal, in the national context, everyone hates Toronto (and they hated Mtl. equally when it was top dog). If Calgary or Vancouver becomes the biggest city, we will probably hate them. It isn't unique to Canada either. British hate London, French hate Paris and Americans hated NYC until 9/11.
There are some CPC policies which can be construed as anti-Toronto if you look hard enough. Their proposal to redistribute seats in the HoC which would increase Albertas & BC's to account for population growth, yet not increase Ontario's was discriminate against Toronto. The GTA is the only part of Ontario which has grown significantly, so shortchanging Ontario would have left the GTA with electoral quotients of 130k-140k people/MP vs. 90k/MP (Canada average) or 30k/MP (Newfound Land).
More generally, we get screwed by the libs as well:
A lot of the policies related to equalization screw Toronto (although not any more than they screw Vancouver or Calgary). Like including 50% of resource revenue in equalization calculations, but not actually collecting this money. That has the effect of raising the price tag of equalization, but the actual funding for it comes primarily from Ontario, which one way or another trickles down to Toronto. The lack of a national securities regulator screws our primary industry (finance), the prohibitions on bank mergers screw finance as well and prevent foreign banks from setting up shop in T.O.
Toronto gets neatly screwed when it comes to immigration. Toronto get's 40% of all immigrants, yet 60% of the funds to "integrate" (ESL, EI, job placement) were going to Quebec, which receives like 10% of immigrants. The feds collect all of the GST and income tax (which rises with immigration) yet the city, backed by the province, has to pay for social housing, education, ESL and pretty much every other cost. And somehow only 15% of Toronto qualifies for EI, which is just bizarre and points to how much we get milked by other areas of the country.
I would vote for any party that promises to adress the imbalance in rural/urban seats. That is the root cause of this problem. It isn't a Toronto specific problem, all Canadian cities would have a similar list of grievances. It is in any government's nature to "buy" the electorate. In the case of a Toronto riding, they would have to "buy" 110-130k people to score one seat in the HoC but in Newfoundland or Manitoba, they would only have to "buy" 40-50k people to score a seat in the HoC. So obviously there will be pork barreling on the shoulders of urban residents, regardless of political party. Until this imbalance is fixed, i'm voting green (just to make sure none of those other parties get my $1.50)