1. I would say that there is no real difference (one course is different but still pretty similar and the language requirement can be waived). What is more, you can change your major when 1st semester starts
2. SIPA has amazing energy program plus you can take courses at business school, law school, school of engineering and all of them are excellent.
3. I have quite unique profile so I will not be good benchmark 168Q/155V, around two years of work experience (management consulting, diplomacy, banking) while studying.
4. I have no idea about this concentration.
5. That some people on this forum say that it is not great