Harvard's The Top University in the World
At least according to this site's methodology. Their methods seem a bit off to me and seem to focus more on awards and articles published than more useful things like how well the students learned, etc... . I'm not discounting the value of winning great awards like the Nobel prize and such, but I'm willing to bet many the folks who helped these various universities rank high in these rankings are probably horrible teachers. And what good is knowledge if you're no good at sharing it?
Out of the Oregon schools, Oregon State and OHSU both made the Top 100 North American schools. University of Oregon, my alma-mater, just missed the top 100, according to the Full List.