Port Royal features characters from the Pirates of the Caribbean series. It was introduced in Kingdom Hearts II and is occupied by pirates and local residents from the Pirates of the Caribbean film series, following primarily the storyline of Pirates of the Caribbean: The Curse of the Black Pearl.
Both have advantages. If you like to stretch your legs during a flight, an aisle seat is good for you. Bear in mind, though, that this may be enforced upon you if the person in the window seat wants to get out of their seat. If you prefer to be undisturbed, then the window seat is probably best.
If in fact all the cheap seats are taken, you'll get a premium economy seat when you check in. You can also try calling the airline directly to see if they'll give you a seat assignment. 2. Watch for (and ask for) cheap last-minute upgrades to business and first class. The best seats on the plane, clearly, are in business and/or first class, but they sometimes cost many times what an economy seat goes for.