As Wovenwonder stated, many people prefer PLAPLAP and think that is the best rotation.
I was hoping for that but got LAPLAPL and I felt terribly upset. So much so that I tried to change it once on board. The cast member convinced me that the rotation didn't matter, and in hind sight I have to agree. It might be nice to be in Parrot Cay during Tropical Night, but that's the only advantage I can think of for PLAPLAP.
As for LAPLAPL, that actually worked out nicely for us. Lumiere's is the nicest of the 3 dining rooms by far, and we got to have 3 dinners there, including our first night's, last night's, and farewell breakfast!
Also, we decided to do Palo's on the 2nd night because a) it was a formal night and we'd already be dressed up and 2) most people on these boards seemed to think that was the least appealing of the dinners. Palo's was wonderful, and we missed Animator's Palate on the night they didn't do the show. Our 2 sons went to AP for dinner and ordered off the kids menu. Based on the adult menu I saw for that night, it DID appear to be the least appealing meal (for us, anyway).