HI Katherine,
Thank you for visiting the Moms Panel and asking us your question.
What a conundrum: deciding between your Advanced Dining Reservation to
Cinderella's Royal Table, or viewing Wishes Nighttime Spectacular! While Wishes is quite a spectacular event to behold, I personally think a reservation at Cinderella's Royal Table is something your family should experience. As you mentioned, those Advanced Dining Reservations can be difficult to come by, so be sure to utilize it! Please make sure to plan to take your little princes to Wishes during another night of your magical vacation, but dinner with Cinderella is a magical must-do.
I hope this answered your question, Katherine. If you have any other questions, please feel free to ask us at any time. We're always here to help.
Have a fantastical Disney day!