We've found ourselves with some extra vacation time and money and since we've never been here, we're looking into visiting. We'll probably have 3-4 days to spend there tops. How much time is really needed? It would be sometime between now and the end of the year. How brutal are the crowds during school breaks? What's the best time to visit over these next few months? I would so appreciate any advice and suggestions on how to enjoy our first Universal visit! Thank you!