I disagree - I say rope drop and be in front. That way when you are done with AK for the day, you have plenty of time left for dinner, shows, or even another park - whatever floats your boat. It is still a mess at RD and you do have to be in front and hurry to the holding bridge. But if you are, you will be off the ride 20 minutes after opening, be able to ride Na'vi with almost no wait, and then get to the rest of the park while everyone else is in line for FoP.