In addition to finances, it depends upon whether OP’s son wants a career in “international business” or in the diplomatic corps.
For a career in international business, Fordham’s program is easily the better choice & has an arguably better location.
For a career in the foreign service, then Georgetown is the better choice if funding is of little concern.
If undecided, then Fordham is the better choice due to the study abroad trips, one-on-one mentoring, and much higher liklihood of getting published. Use the extra funds for a masters at Johns Hopkins or Tufts for international relations or for a one year masters in a business discipline.
Foreign Service positions are highly competitive. I suspect that masters & higher degrees are commonplace in that field.
As for prestige, that is subjective. Fordham’s Global Business Honors Program is limited to a class of 25 who have access to tremendous resources & opportunities.
As for the comment above regarding statistics & business analytics, Fordham is the better choice as a simple review of the required freshman courses will reveal.
Foreign language study is better at Georgtown. Housing, if still at Lincoln Center, is far superior to the rodent infested dorms at Georgetown (assuming that that problem has not been resolved).