I openly admit the following is going to be entirely ship and crewing level dependent, but we sailed the Ruby Princess in January (2022) and had dinner in both the Crown Grill and Sabatini's.
Our experience with the Crown Grill was the worst dining experience we have ever had with Princess. Even though we had paid the cover charge, service was so bad that we left before desert, we didn't want to extend that experience anymore.
In contrast Sabatini's was EXCELLENT! The staff were attentive, polite, looking to improve your experience at every opportunity.
I put this down to the crew being short-handed and Crown Grill being way more patronized than Sabatini's, which lead to the CG staff being exhausted and frustrated. Sabatini's was so good that we went again on a later night.
I don't know if staffing situations have changed significantly, but if you see things you like on the Sabatini's menu I would recommend you try the less stressed staff you are likely to find.