[Auld Yin]

I apologize in advance if the question was asked before, but I would like to know if immigration laws on U.S. citizens who want to move to Canada are like the rest of the world. Is there an advantage to A US citizens?

No, it's the same qualifying/requirements.

 

[Auld Yin]

Is there no advantage under NAFTA? For Canadians (or Mexicans) wanting to work in the US, there is TN status whereby some professionals can arrange their visa on the border.

There are no special arrangements for anyone. As a matter of fact earlier this year Canada passed legislation whereby Mexicans cannot enter Canada in any capacity (even vacation) without a visa.