I think what the park lacks is memorable music. It's kind of the same problem with AK, too... they even reuse Adventureland area music in the Flametree BBQ area. At least the area music around the Oasis, Tree of Life, and "Hapa Duiani" are memorable. What music do you associate with DHS? The obnoxiously loud HSM3 parade? The Forest Battle for Star Tours? The Hollywood Tower Hotel playing creepy 30's jazz music with tons of reverb/twilight zone? TSMM "You got a friend in me" played really fast? Aerosmith songs for RnRc?
What MK has/had:
"it's a small world", "in the tiki room", "yo-ho, yo-ho a pirates' life for me", "little orange bird", "you can fly", "swiss family polka", "winnie the pooh", "i'm late/paining the roses red/off with her head", "star tunnel", "there's a great, big, beautiful tomorrow", "country bear jamboree", "songs of the south", "all aboard the mine train", "grim, grinning ghosts", "fortuosity", "monsters, inc. theme", "the little mermaid story book", "be our guest", "gaston's theme", "monorail song", "planetary boogie", "if you had wings", the tomorrowland area music, "wishes", leaving the park with "when you wish upon a star", etc.
What EPCOT has/had:
"one little spark", "innoventions area music", "world of motion", "horizons", "listen to the land", "in the big, blue world", "universe of energy", "part of me", "honey i shrunk the audience", "ellen's energy adventure score", "fountain of nations", "swept away, fountain view area", "spaceship earth 2006 score", "soarin'", "canada", "three caballeros", "german area music", "two brothers", "mission: space march", "garden grill area music", "circle of life", "illuminations", "promise", etc.
The smells and memorable music that are intertwined so nicely with the ride experiences and general activity at MK and EPCOT make the other parks seem that much more drab and lacking. "Enchanted Tales with Belle" has the interaction and experience this new generation craves, and along with the songs everyone knows and sings, I think the branding in young, future consumers is a great model to generate success. Look at us, MK has a little something of everything at the park and we're eating it up. We get giddy when Donald or Mickey waves at us and tear up when we recall our first ride on Dumbo. The other parks don't have that.
I think Frozen will be the first of the new iconic staples for the new generation of Disney buffs and DHS has taken the cheap approach to incorporate it into the park before committing to full scale. The whole comic book-made-movies don't translate well in theme parks: look at uni, a worn down Spiderman ride and a Hulk rollercoaster. Disney wants to exploit their take over of Marvel anyway they can, and they're trying to figure out the best way... too bad this whole Avatar business got there first.