Concerning SMCs, all of them offer excellent AROTC programs. However, as others have mentioned, if he is interested in working at the State Department, he should choose the college where he can earn the best grades. This will also help him place high on the OML for Army branching. Realize that if end goal is to apply to the State Department, the most recognizable route to a career in diplomacy is a bachelors degree and then a masters in a related field such as international relations, political science, cultural anthropology, sociology or foreign policy. Getting into one of these top graduate school programs, requires top grades and standardized test scores. This is why the advice is always to choose the school offering the major degrees in which he will do exceptionally well.