I post the list a lot for WDW vets going to DL. I had a reverse one once, but couldn't find it. I will try to do one. Let me know if I miss anything. I can be too granular sometimes, so I may leave some out. Let me know and I will edit:
MK Exclusive Attractions:
Country Bear Musical Jamboree – all new show!
Hall of Presidents – uses some of Lincoln’s speech from DL
Enchanted Tales with Belle
Seven Dwarfs Mine Train
The Barnstormer
TRON Lightcycle/Run
People Mover – yeah, WDW still has one!
Carousel of Progress
Monsters Inc. Laugh Floor
MK Similar but not exactly the same:
Walt Disney World Railroad – no diorama scenes
Jungle Cruise – has temple, a bit longer
Enchanted Tili Room – shorter show
Pirates of the Caribbean – shorter with fewer show scenes
Big Thunder Mountain Railroad – once it gets the new upgrades may be somewhat different
Tiana’s Bayou Adventure – larger boats, slightly different, less prone to sinking!
Haunted Mansion – some differences in scenes (like the stairway)
Peter Pan’s Flight – slightly different scene order, nonstop loading (still long waits)
It’s a Small World – no Disney characters
The Many Adventures of Winnie the Pooh – pretty similar but different vehicles
Tomorrowland Speedway – much shorter than Autopia
Space Mountain – Actually very different from SM at DL but similar to The Matterhorn
Buzz Lightyear’s Space Ranger Spin – Pending upgrade may be very different
MK exactly (or basically) the same:
Swiss Family Treehouse
Magic Carpets of Aladdin – a spinner like Dumbo or Astro Orbiter
Dumbo The Flying Elephant – has two spinners
Prince Charming Regal Carousel
Mickey’s Philharmargic – bigger screen than at CA
Mad Tea Party – has a canopy
Under the Sea: Journey of the Little Mermaid
Astro Orbiter - elevated
EP Exclusive Attractions:
Spaceship Earth
Guardians of the Galaxy: Cosmic Rewind
Mission: SPACE
Test Track – uses a similar ride system to Radiator Springs Racers, faster but shorter
Journey into Imagination with Figment
Living with the Land
The Seas with Nemo and Friends
Journey of Water inspired by Moana (walkthrough)
Gran Fiesta Tour Starring the Three Caballeros
Frozen Ever After
The American Adventure
Remy’s Ratatouille Adventure
EP Similar but not exactly the same:
N/A
EP exactly (or basically) the same:
Soarin’ Around the World
Turtle Talk with Crush
HS Exclusive Attractions:
For the First Time in Forever: A Frozen Sing-Along Celebration
Indiana Jones Stunt Spectacular
Slinky Dog Dash
The Little Mermaid – A Musical Adventure
Walt Disney Presents (walkthrough)
Rock’n Roller Coaster – pending a retheme
HS Similar but not exactly the same:
Alien Swirling Saucers – basically the same as Mater’s Junkyard Jamboree
Twilight Zone Tower of Terror – Like Mission Breakout, but not really
HS exactly (or basically) the same:
Mickey and Minnie’s Runaway Railway
Star Tours
Rise of the Resistance
Millenium Falcon: Smuggler’s Run
AK Exclusive Attractions:
Zootopia: Better Zoogether
Avatar: Flight of Passage
Avatar: Na’vi River Journey
Festival of the Lion King – seriously, do not miss this!
Kilamiinjaro Safaris
Gorilla Falls Exploration Trail (walkthrough)
Wilderness Express Train/Rafiki’s Planet Watch
Maharaja Jungle Trek (walkthrough)
Feathered Friends in Flight – bird show
Expedition Everest
Finding Nemo: The Big Blue and Beyond - musical
AK Similar but not exactly the same:
Kali River Rapids – shorter version of Grizzly River Run
DINOSAUR – soon to be Indiana Jones, in which case it will be more similar – same ride system
AK exactly (or basically) the same:
N/A