Appreciate your insights.

Returning the car is not an option, so will look for a garage - 2 day parking seems to be available for way less in the city vs parking at either of the hotels.

After reading everything I am leaning towards the Hilton, mainly to avoid the hassle of renovations at one DT and the boats at the other. It also feels like I am maximizing the value of my points, since
DT NDSM is €170/ night or 50,000 pts
DT Centraal is €230/ night or 60,000 pts and
Hilton is €410/ night or 70,000 pts.

Planning to book rooms from 2 different Diamond accounts, so lounge access shouldn't be an issue.