I use an electric wheelchair full-time and can't sit up without complete support.
When the map says
ECVs must transfer-it is talking about the 3 wheeled scooters or the chairs Disney rents NOT electric wheelchairs. Here is a list of rides that you can drive your wheelchair directly onto without transferring, sorted by park:
Magic Kingdom---
Buzz Lightyear's Space Ranger Spin
Stitches Great Escape -only manual chairs
Many Adventures of Winnie the Pooh (ask for the bounce button)
its a small world (easy access)
Liberty Belle Riverboat (Tour around a lake with some props and animatronics-kinda long-chair sits below level of bars, partially blocking view)
Main Street U.S.A.-Railroad-steam train ride (I loved it. Round trip is best, there are scenes along the way.)
Jungle Cruise (recently converted)
The Magic Carpets of Aladdin-only manual chairs
All the Character Greeting Areas and shows are wheelchair accessible. There are always spaces for wheelchairs with seats for family members adjoining
Swiss Family Treehouse and Tom Sawyer Island are impossible for wheelchairs (you can do a roundtrip on the raft that goes to Tom Sawyer Island)
All night-time shows and parades have special wheelchair viewing areas-ask a CM, they're marked on a map- arrive 1-2 hours early for a seat and you cannot leavenighttime shows are my favorite and are well worth the wait
Spectromagic parade (nighttime parade of lights)
Wishes Fireworks does NOT have specified wheelchair seating but if you watch Spectromagic by the statue you will have a good guaranteed view
Epcot
Ellens Energy Adventure (easily accessible-cute Jeapordy style beginning that then takes you back in time to Dinosaurs)-manual chairs only
Journey Into Your Imagination (easily accessible-really cute/fun ride with a fully accessible interactive special effects playground afterwards)
Living with the Land (informational tour about various climates and agriculture)
El Rio Del Tiempo (accessible-boat ride tour of Mexico)
The Living Seas (all areas accessible, although some areas may have alternate access. At your own pace viewing of a live sea aquarium and the new Crush attraction and a new ride that is wheelchair accessible The Seas with Nemo and Friends)
The World Showcase (all areas accessible, although some areas may have alternate access)
Street shows are hard to see unless you arrive a little early to sit in front
All the Character Greeting Areas and shows (including Innoventions) are wheelchair accessible (*note: The Kid cot fun stop crafts will be difficult to do unless you have a tray on your wheelchair because the table and chairs are low and the supplies are scattered)
All night-time shows and parades have special wheelchair viewing areas-ask a CM- arrive 1-2 hours early for a seat and you cannot leave-- nighttime shows are my favorite and are well worth the wait
MGM Studios
Great Movie Ride
Star Tours has a nonmotion option available at night or if it's not busy
All the Character Greeting Areas and shows are wheelchair accessible
MGM has a lot of good shows
All night-time shows and parades have special wheelchair viewing areas-ask a CM- arrive 1-2 hours early for a seat and you cannot leavenighttime shows are my favorite and are well worth the wait
Animal Kingdom-
Wildlife Express Train (train that shows you how Disney cares for their animals and takes you to the Conservation Station-may have to back on)
Triceratop Spin
Kilimanjaro Safaris (mild thrill ride with a guide that drives you through authentic habitats to view real exotic animals-best experienced in the morning. Note: This ride is bumpy. You may need to back in to the ride vehicle.)
All the Character Greeting Areas and shows are wheelchair accessible (*the Boneyard is not. *Conservation is listed as accessible but I didnt visit it.)
All the nature trails are accessible and have beautiful wildlife. There are many exhibits-a few viewing areas are a little difficult to get to.
All night-time shows and parades have special wheelchair viewing areas-ask a CM- arrive 1-2 hours early for a seat and you cannot leavenighttime shows are my favorite and are well worth the wait
I hope I helped.
Remember all shows are wheelchair accessible-don't miss the nighttime shows-especially Fantasmic-and don't miss Festival of the Lion King.
If there is anyway to transfer, I would do it for Soarin in Epcot. The ride is awesome. Even I was able to do it. You can pull your chair right up to seat and the movements of the ride are smooth. The seat is also elevated.
Peter Pan's Flight and Dumbo are NOT wheelchair accessible
I use an electric wheelchair full-time, 24/7 gj tube feeds, trach, and vent part-time. You can get all the details of my trip in my trip report (link in signature) Get a GAC
We also went to Sea World. 90% is shows and they are all good. They all have wheelchair seating. Jonah and one caregiver get tickets at 1/2 price.
-Christamae