Superman gets packed right away due to it being right near the entrance. Then the Joker will probably get the second longest line for the entire day. Goliath usually has the third longest wait. If I were you I would hit up joker first thing in the morning, then Goliath and then do whatever. Raging Bull, Batman(both), and American Eagle usually have less than 30 minute lines due to their high capacities. Hit Superman towards the middle of the day there should be like a 40 min wait. Whizzer and most kiddie rides have longerish lines so be sure to check the app for good times. Also I would recommend to NOT buy any food in the park, right outside the park in the plaza there is a nice fastfood/restaurant called Mama K's which has cheapish food but its really good. For Flash pass I don't have much experience with so I can't recommend anything. Otherwise have a great time!