My princess loved the following:
PSB (but then we saw all the same characters in EPCOT with NO lines at their respective countries (Snow White - Germany, Belle - France (also at Belle's story time in MK), Mulan - China, Jasmine - Morocco & Mary Poppins - UK (also near the carrousel in MK), and I read Aurora is in France sometimes too but we did not see her).
Making crowns - expensive but as soon as she saw it she had to have it!
Pin trading - we bought from
Disney store online after Xmas (tons of Xmas ones on sale) & traded those (in Sept of the next yr) for ALL princess pins!
Try to wake up Tink by being the 1st one at Tinkerbelle's Treasures in MK right when it opens.
VotLM & B&TB in MGM.
ALL the parades have princesses.
Toontown Princess Room (dd even got picked to walk Cinderella from the outside of Toontown into her room, don't ask me how, it just happened!! We were one of the 1st ones there & a few people greeted her outside & then the CM said we could walk her in!!). Ariel was there since her Grotto was closed, maybe it will be open when you are there.
Cinderella's Surprise Celebration - in front of the castle - has princes too! DD always asks about the princes!
Princess name badge from
http://www.laughingplacestore.com/Product-2538.asp
Everyone called her Princess Abby when she wore it!
Hope this helps!