I would let her know how amazingly awesome Disney and Universal is (I have never gone to Universal...only Disney)! Here's a few ideas to show her :)
1. Go online to waltdisneyworld.com and look up the attractions and hotel you are going to (if you are staying at a WDW hotel). They give little mini tour of the lobbies, and there are amazing descriptions of the attractions, entertainment, restaurants, and hotels.
2. allears.net will also give you some great reviews of rides, menus, everything WDW!
3. Go to youtube.com and they give POV (point of view) of all the rides. You can also get they parades, Fantasmic!, and Dream Along with Mickey in HD with amazing views for little sneak peaks. Youtube will also give you videos of pretty much everything from restaurants to hotel tours.
4. Get a Guide Book...I have the Ultimate Book and my daughter has the Kids book. Great descriptions and pictures, always a good way to get into the Disney Mood.
Just a few ideas...I am sorry but I have never gone to Universal so I have no specific answers! Sorry!
Hope this helped! Enjoy your vacation! :)