Thank you all for the feedback. I am very torn. I have been strongly advised to take NPSIA for the prestige factor for external recognition for jobs... but I am still heavily swayed by the excellent quality of professors at GPSIA who are also experts still practicing outside of research as well, and whom I already have a relationship with.
There are no bad options clearly so I don't mean to be ungrateful. I am just struggling as to what (if any) is better in the long term as I want to stay local and it is very hard to determine.
Regarding the question about foreign policy- I would not be able to comment on NPSIA as much but for GPSIA, given the CIPS organization and frankly Roland Paris, Peter Jones, Wesley Wark, Michael Williams and Alex Gheciu as leaders in their fields..... foreign policy is well represented. Cips, and its events, is exceptional and attracts experts from all over the world.
Can anyone comment as to whether professionals in the field care about the APSIA accreditation designation in the field? I am surprised other schools have not acquired it.