Exactly
All the ships have unique themeing and shows.
There are ships in various parts of the world, some in Caribbean / Bahamas, some on the West Coast California and Alaska, one ship does a summer season in Europe and one ship is on its way to Singapore.
The 4 original ships are classic overall Disney, with a little bit of everything
The Wish is Princess themed.
The Destiny is Heroes and Villains Disney, Pixar, and Marvel characters
So someone recommending The Wish, due to THEIR personal prefrences may not align with what your party would like.
Someone saying the service has gotten sloppy or not not what it was should not influence your choice because you have noting to compare it to, your first experience will be your base line.
Someone recommending The Destiny because they have been cruising for 20 years and have been there done that and want something new, should not influence your choice because the restaurant experiences, the shows, character meets etc may not align with what your party would like.