I want to preface this list with the idea that every family likes different rides. For instance, MOST people love The Hollywood Tower of Terror. My family however, hates it. So while I put it on this list, I do understand that not every family will love every ride. That being said, the rides on this list are the most high demand and most popular ride in the parks.
I will leave a short description of each ride along with height restrictions for each as again, each family has different sized members. For those with smaller children, make sure you keep your child's height in mind.
Magic Kingdom
Seven Dwarfs Mine Train- this is a family friendly roller coaster where you journey through the 7 dwarfs mine. 38 inches height required.
Space Mountain- A dark roller coaster with twists and turns through space. 44 inches height required.
Splash Mountain- A lovely story ending with a large drop where you will get wet! 40 inches height required.
Peter Pan- One of the best rides in Fantasyland and super nostalgic. All AGES!
Big Thunder Mountain- The wildest ride in the wilderness! This is a train style roller coaster. 40 inches height required.
Hollywood Studios
Slinky Dog Dash- Super fast roller coaster with a toy story theme. 38 inches height required.
Rockin Rollercoaster- Better for older kids. There is an upside down corkscrew on this one. 44 inches height required.
Toy Story Midway Mania- Family friendly competition ride. Ride through and shoot at targets to compete against your family. ALL AGES!
Hollywood Tower of Terror- Better for older kids. Series of drops and spooky storyline. 40 inches height required.
Star Tours- A virtual 3D ride through space. Several different story lines. 40 inches height required.
Soon to come: Star Wars Smuggles Run.
Epcot
Soarin Around the World- Hang glide over different areas of the world. Family friendly. 40 inches height required.
Mission Space- Possible motion sickness. This is a trip to space. There is a Green and and Orange level, orange being the more extreme version. 40 inches height required.
Test Track- Super fast ride where you test out a ride vehicle at high speed. Great Cue! 40 inches height required.
Frozen Ever After- Family friendly ride through the story of Frozen. ALL AGES.
Animal Kingdom
Avatar Flight of Passage- Motion sickness warning! This is a virtual reality ride through the world of Avatar. 44 inches height required.
Expedition Everest- Better for older kiddos. Fast roller coaster that does go backwards. 44 inches height required.
Kilimanjaro Safaris- Super family friendly trip into the safari to see real animals such as elephants, lions and gorillas. ALL AGES.
Dinosaur- Super jostling and a bit spooky. Sharp turns and stops. Super exciting! 40 inches height required.
Navi River- Family Friendly ride down the NAvi River. Very Pretty but also very short. ALL AGES.