What I've found over the past 5-6 years is that Canadian Whisky is going the same route that Scotch & Bourbon has done. Different distilling with different agings in different types of barrels. What I like is that the Canadian Whisky hasn't hit the crazy prices that some of the others have. A few years ago I got some 30 yr old Canadian Rye and paid about 50 bucks for a bottle. I would not have a hope in hell of getting a Scotch or Bourbon for that price.
What I find funny, is that in the US, Canadian whisky outsells Scotch, Bourbon, Irish, Gin... combined.