Niagara Falls—Niagara-on-the-Lake is another close LPC-CPC race that could use any help from non-LPC voters. It used to be a CPC seat.
This page shows a nice visualization of the closest races.
In a riding where the other candidates don't stand a chance, I vote for the candidate who doesn't stand a chance but whose party's values I like best. Like the NDP or the greens.
Doesn't do much, but in a way, it's freeing and I can pretend I'm free to vote for anyone.
If someone has a chance to beat the worst candidate, though, I'll vote for the most likely one. And that's the most depressing situation of all.
I really hate this voting system. But it'd take a miracle for it to change.