With your seemingly low status in HH and NW WP, I would say that the American-->Hilton Honors option seems best.

As a 2MM status seeker, I see other peoples miles in a different way. I would hold onto those miles and transfer them into my aadvantage account to increase my "program to date" count.

I have four accounts of other people that are waiting to have their miles transferred into mine. Unfortunately AA limits the transfer to 15k per year, so I have to do it over the course of four years. However, that's 60k that will end up towards my MM status.