sweetsue, i just welcomed you on our cruise's thread.
I've never done a 7-day cruise before, but here's my philosophy. I tend to be a bit anal about planning (what? a DISser anal about planning?

), so we requested to eat in Parrot Cay the first night on the ship so we can be in Lumiere's Sunday night - formal night. That would give us the PLAPLAP rotation - Parrot, Lumiere's, Animator's, Parrot, Lumiere's, Animator's, Parrot.
We're doing Palo's brunch on Monday, the second day at sea. Tuesday is Pirates night, and I wanted to be in the lower key, fun restaurant for that night. The semi formal night is Thursday, and I wanted to be in the "medium-level fanciness (what a silly phrase

)" restaurant that night, so that's Animator's. Finally, Friday night would be the third night for Parrot Cay, so I picked that night to make our Palo dinner ressies.
Granted, I may worry about this more than I should, but I just know how I like things, and with so much you can't control on a Sept cruise (specifically weather!!!), I like to control when and where I get to eat!
HTH.