You mentioned PhilharMagic as well - I absolutely love that show, but think that it could be even better.
First, the 3D when the stage is set up is lousy, once it gets to the three giant screens it works a lot better because everything is that much larger. There is still the glow/show effect in many scenes (most notably on Lumiere when he's against a black background)
Second and admittedly on the far fetched wish list would be to have multiple shows. I understand that the transitions as they are now work pretty well, but I would love to see 2 or more options for every scene. The other option would be to lengthen the show by one full song. It's not a capacity issue, especially after New Fantasyland.
Some songs that could be added:
Bare Necessities - Jungle Book
Friend Like Me - Aladdin (I know that A whole New World is already in there)
Whistle While You Work, Heigh Ho or Someday my prince will come - Snow White
Supercalifragilisticexpialidocious - Mary Poppins (not sure if it could work in CG)
You'll Be in my Heart - Tarzan
Zip-a-dee-doo-da - Song of the South
Colors of the Wind or Just Around the Riverbend - Pocahontas
When You Wish Upon a Star - Pinocchio
What's This - Nightmare Before Christmas (Again, could be tough with the CG issue)
You've Got a Friend in Me - Toy Story
I'll Make a Man Out of You - Mulan
Merry Unbirthday - Alice in Wonderland
You can also pick songs from Tangled or Princess and the Frog as well
