What are the career goals?
Are completely urban campuses (with or without dining halls) OK?
In terms of nurturing, I would not think of any of these as particularly nurturing given the sheer size of so many and the many public universities on the list. When I think nurturing with good academic rigor, I think Top 50 LACs or ultra elite schools with laid back cultures (eg Brown or Yale), not the schools on your list. Tulane might be the closest thing in your list to an LAC as the preprofessional schools are separate and the college of arts and sciences is not that big, but I would only consider it for a very highly restrictive/self-regulated kid as the temptation and risk of constant debauchery seems to lurk a trolley ride away from campus. Have you looked closely into the Vern campus of GW and its Honors program? It has seemed very intriguing to this DC fanatic. There is something so thrilling to me about being in the middle of DC, especially if he is interested in economic development and policy. The internship opportunities are unbelievable.