For Manhattan, this would be my choice:
http://www.comfortinn.com/ires/en-US...fo?hotel=NY325
http://www.tripadvisor.de/Hotel_Revi..._New_York.html
Most of the Manhattan properties recently increased to 25K points/night, but, given the current state of NYC hotel prices, that's not really surprising.
Alternatively, you might consider this Clarion Collection, which is 20K points. I can't find any reviews or photos, so it's a risk, but supposedly it's newly built:
http://www.clarionhotel.com/ires/en-...fo?hotel=NY426
EDIT: It's on the new property list, but I am not sure when it will actually be open/accepting reservations.