Canada is very different, because the party in power in the House of Commons can basically do anything it wants. By contrast, the political system of the US is effectively designed to produce gridlock. The Canadian Senate rarely blocks and introduces legislation unlike that of the US, just to name one example.

There are benefits and drawbacks to both systems. Right now I'm pretty happy with this aspect of the US system. (There are other parts of the US system I'm less happy with—such as the Electoral College.)