Is it just me, or are Parliamentary systems way cooler than what the US has?

See this? If that sort of thing could happen in the states, Bush would have been gone at least two years ago. And, yes, I know, David Brooks, that would mean we probably wouldn't have had the surge in Iraq, and that country would very likely be worse off today. Meanwhile, the rest of the world (and the United States in particular) would have benefited from two fewer years of benighted leadership in almost every area the President touches.

Exactly what advantages can the American system boast? Nominal independence of the chief executive from the legistlative branch, I suppose, though I'm not sure how much of a boon (or how real) that is considering America's last 3 years.