Waiting for HKS MPP, if rejected. Then the decision between Harris MPP and Sanford MPP seems a no-brainer. Though I have heard many bad things about Harris MPP, its STEM degree seems to be a key decision factor for an international student. But if you get an offer from HKS, its recognition will outweigh any Harris and Sanford. Also where do you want to work after graduation, if you want to work in Europe then Science Po is definitely the one. As for the U.S., I felt Chicago presents more opportunities for international students than North Caroline, despite the generally good vibe at Duke. If you feel like big cities and STEM are more important, then Harris.