I was at Universal last year, Columbus Day was busier than any of the other 3 days we were there. This is what we learned during our 4 days there last year:
We made an agenda of must do and must repeat do (rides, wand, 3 broomsticks, Frog Choir, Triwizard Spirit Rally, and so on).
Each morning we did the must do first thing, then going to the next must do on our agenda until the lines became crazy.
Then we went to our must do list for the other areas of the parks and went and enjoyed those.
3 days we rode FJ first and then went on to do other things.
The 4 day we went to the wand shop first and we still had to wait about a half an hour. Much better wait early because most of the line is in the sun so being their first thing it was easier to wait.
Ask a WWHP attendant when the Frog and Triwizard shows are, they will be right there in the area where the wand line is looking towards Hogwarts.
When you get to the Owlery remember to get your WWHP postcards and have them stamped with the Hogsmead postmark.
And the best book on Universal is "Universal Orlando 2011" by Seth Kubersky and Kelly Monaghan. Other books I borrowed from the library, this book i bought.
Have fun and Happy Birthday your DD.
you had a great plan laid out!
i totally agree.
last year the columbus day was huge with crowds!