Well here is the scoop on Holland America.
Our family of three, two adults and a now 13 year old teen we have traveled on Holland America three times now. In the interim period we have cruised on Royal Caribbean and Princess Cruises. We selected the 10 day cruise at least partially over the Thanksgiving school break and the destinations that appealed to us.
What we can tell you that is not opinion is that Holland America has reduced the crew to passenger ratio, adding 2-4 rooms additional to room stewards and additional tables to the restaurant servers. There is no question that there is a distinct decrease in the level of service. The room stewards no longer take the time to learn your name, same in the dining room, they are always in a rush (a few exceptions).