MBA or MPP?

Greetings, I'm an active duty military officer, Navy pilot, and am currently evaluating options for my shore tour and eventual transition to civilian life. I have an idea of what i want to do, but am really unsure of which path would be best to achieve those goals. Any advice from the forum would be greatly appreciated. I've put a short description of my qualifications that describe my abilities.

College: University of Michigan, Political Science 2007. GPA 3.2, however, due to my Naval scholarship, I had to take calculus, computer science, and calculus based physics which subsequently brought my GPA down. For my master, my GPA was a 3.7. For my senior year, I was selected as Battalion Commander which entailed managing a several thousand dollar budget, and coordinating a daily training schedule for a 120 person battalion. I finished in the top 15% of students in flight school, and finished #1 in my class out of the Replacement Air Group. In terms of my current platform, I have completed two deployments that entailed flying and managing a combat aircraft with an eleven person crew in challenging and demanding environments. I have not taken the GRE or GMAT yet, but plan on taking it with in the next 6 months. If it's any help, I scored a 32 on the ACT and 1330 on the SAT in high school.

Options: Navy Political Military Masters Program- I would apply to one of the following 5 schools: Harvard, Georgetown, Stanford, Johns Hopkins, and Tufts, and if accepted to the program would attend the school to earn a masters in either public policy, international relations or something similar. After the completion of the degree, I would be obligated to serve a 2 to 3 year tour at the Pentagon or White House on a major staff or equivalent. After that I would be free to move on to civilian life

University of Michigan MBA: I would return to U of M as a NROTC instructor, and go back and attend the Ross school to earn an MBA. After a 4 year tour as an instructor, completed while going to school, I would be free to move on.

Both of the options would start in the fall of 2013 and I would end my commitment in 2017. In terms of civilian life, I would like to get into management or consulting of some sort. I love traveling, and have spent, cumulatively, a couple of years operating in foreign countries. I would love to get in the development/managment side of alternative/ renewable energy, sustainable agriculture, or something more beneficial to humanity than war fighting. Cost isn't a barrier as it will be covered by the Navy, and I will still be receiving my salary while attending school. I guess I just have no idea where to start. If anybody has any insight or advice I would be extremely grateful.