We are planning a dec 17-23rd trip roughly split into 3 disney/3 universal days (or 4 disney and 2 universal). Harry Potter World is a major priority for our family. Will be staying onsite for Universal during that part of the trip for the front of the line and early entry privileges. It looks like at Disney the first part of the trip is much less crowded than second, assume same is true at Universal? Which is more impacted by the increase? Does either park get more crowded earlier? In other words shd we do the Universal days first or Disney days first? Thanks!!!!