I'm in the same boat as you! I'm interested in the same career goals (working for the UN and/or working in migration / refugee/ asylum policy). I was recently accepted to Sciences Po for Human Rights and Humanitarian Action as well, and a similar program at Columbia. I'm also waiting to hear from Oxford for the Refugee and Forced Migration Studies. From my research, I've found that a lot of organizations like the UNHCR , the UNDP, Save the Children, Amnesty Intl, etc. hire from LSE, Sciences Po, Oxford, Columbia, and Georgetown (In no particular order though it seems like a huge amount are from LSE and Columbia). I've been advised that going to school in Europe is a great move because its cheaper, the education is still high quality, and the international experience and connections come in handy when trying to get a job for an international organization. I'm going with Sciences Po for this reason, and because they gave me an Emile Boutmy scholarship whereas Columbia gave me nothing (I will never be able to pay back those loans so i'm not even considering it). I've heard from my former professors that the Oxford program is amazing though and could lead to great connections and can set you up for competitive PhD programs if that is what you're interested in, so my fingers are crossed. Good luck deciding! Perhaps we will meet at Sciences Po or Oxford!