Hello there, we will be in Universal Studios on the 18th December and are planning to do both parks in one day. However, we are not staying on property, but do have express passes. Are we better to do US first, and go to IoA (WWoHP) in the afternoon? Or IoA first? We would prefer to save WWoHP until the evening, but wondering if there will be problems with crowds? If you think we'll still be able to get in around 6: oopm, we'll stick with going to US first. Thanks!