I usually do the left side of the park first, then work around, but it really has to do with how we did it when I was a kid. You can get a ton done on that side though and I can usually click off JC, POTC, Splash, BTTMR, and HM before it gets crowded (some of those I might do twice). I save my FP's for 7DMT and Space, then whatever I may want to swing back toward later. You really can't go wrong with wherever you head first though.