Metro tried to placate foes by trading a plot of land, worth $2.5 million, for a pledge to drop lawsuits.
The private equity firm that bought the brand in 2011 is considering selling the brand.
Thrillist ranks Portland ahead of San Diego, Denver and Seattle.
Nike pledges American manufacturing jobs if "fast-track" trade proposal passes.
The Canadian company says it is not dissuaded by Portland's mayor abandoning the project.