The QS World University Rankings (Britain) rank Purdue #14 in the entire world in mechanical engineering. Wisconsin didn’t even make the top 50.
http://www.topuniversities.com/university-rankings/university-subject-rankings/2014/engineering-mechanical#sorting=rank+region=+country=+faculty=+stars=false+search=
But hey, Princeton Review rates Wisconsin as the #8 “Top Party School” in the USA!
http://www.collegeatlas.org/top-party-schools.html