First timers to Universal and need some advice

[Taytortots]

Okay, so my family of four goes to Disney World every year and this year we're going to be spending two or three days At Universal. We're going on one of the days between December 4th - 14th.
I'm wondering what the crowd level will be like, especially in Wizarding World of Harry Potter, since I'm a huge fan and know I will be spending a fair share of time there.
Any advice on which rides to do first or last because they're the busyest.
Tips regarding anything are appreciated. Thanks in advance.
Edit: I can't beieve I didn't remember this before, but I'm wondering how many days to spend t each park. Is one for each enough?

 

[Metro West]

Okay, so my family of four goes to Disney World every year and this year we're going to be spending two or three days At Universal. We're going on one of the days between December 4th - 14th.
I'm wondering what the crowd level will be like, especially in Wizarding World of Harry Potter, since I'm a huge fan and know I will be spending a fair share of time there.
Any advice on which rides to do first or last because they're the busyest.
Tips regarding anything are appreciated. Thanks in advance.

Crowds leading up to Christmas aren't too bad but WWoHP will be busy...as always.

Make sure you arrive prior to opening and try to to WWoHP first thing. You will need to check the park hours on whichever date you decide since it's possible to wait until the evening to do WWoHP when it's less crowded.

 

[DutchsMommy]

We're going to be there around the same time as you. We are attending the DIS WWoHP event so are hoping to use that as our chance to experience HP with smaller crowds. We are alloting 1 day per park. I figure worst case we can always plan on coming back on our next trip. I am getting 'hopper' tickets and will likely sample each park on each day so on day 1 we get an idea of what we like and dont and then on day 2 we can revisit what we liked or visit what we didnt get a chance to on day 1. We will most likely be there Sat and Sun so I think it will be busier, but it is the beginning of December so realistically I dont anticipate crowds to be an issue given the low season, same as at Disney - get there early, knock off the biggies, then enjoy the rest of the day.