I'll bite, even if I'm not Canadian.
Barring something revolutionary, I imagine that the Liberals will win again, if only because of how Canada's population is distributed. The Conservatives seem to only have real support in the Western provinces, and they just don't have the people, in comparison to Ontario and Qu?bec.
(You can see why the U.S. developed the electoral college 225 years ago, as lowly populated states worried about this; but, on the flip side, America's population centers are now at the mercy of these smaller, generally more conservative states, and is that fair? I don't know either way.)
As for Harper making the "lowest taxes in the world," it would be quite funny, considering that the (Progressive) Conservative, Brian Mulroney, was responsible for the massive GST in Canada. I guess I'd have to read more details of what he wants, but look at the American tax system: the wealthy get away with murder, proportionately, and we have massive deficits to show for it--all while the states raise taxes and fees to make up for our derelict federal government.
I would beware any attempt to lower taxes that drastically, because, frankly, I would hate to see Canada devolve into the United States' terribly neglected infrastructure and social programs. Sure, American corporations have a lot of money (well, not really; deregulation allowed our companies to become much more insolvent, and now many of them are one stock panic away from bankruptcy [K-Mart, Global Crossing]), but our health care is only good for those who can afford it (and rotten for those who can't).
But, really, I can't imagine that Harper will get many votes east of Manitoba, but, I guess, anything can happen.
Melon