OP are you actually "confused"???
Sounds more like you are indecisive about what you should do during the party.
If that's the case you just need to look it all over and decide for yourself.
PERSONALLY I would not waste party time eating at a table service restaurant during the party.
Your party ticket allows you to enter at 4pm so either eat before the party starts at CRT if that's what you want or eat outside of the park before the party or eat at quick service during the party if you rather eat later.
Don't eat during the parade if you want to watch it.
Do the dessert party if you want to...
For ME the party is more about overall atmosphere, the cookies/hot cocoa, the music, the snow, and the rides.