Pre-merger with Starwood, my DH and I stayed at a local hotel (in the old quarter) in Hanoi:
http://www.hanoilasiestahotel.com/
Free laundry, free minibar, breakfast included, step outside and you're in the old quarter (on a quiet side street) --- a busy main street is less than a half-block away.
Friendly staff, great concierge group who booked street food tours, a cooking class in the hotel, and helped us go to a snake restaurant.
Didn't earn points, but it was a very enjoyable stay.