That is such a great age for Disney, IMO. DD was 16 months when we went and she loved pretty much everything and wasn't old enough to be afraid of anything! We did all of Fantasyland, her favorites were Dumbo and Pooh. In Tomorrowland she enjoyed Buzz but wasn't crazy over the Speedway, I think she would have liked the TTA but we didn't ride it. Haunted Mansion was a hit, as was Tiki Birds and Pirates. We skipped Aladdin's Carpets but I'm sure she would have liked it too. She also enjoyed the birds on Tom Sawyer Island, I think that may have been her favorite part, lol.
At AK she absolutely LOVED TriceraTop Spin, wanted to ride over and over again.
At MGM Playhouse Disney was the favorite, and she also liked Beauty and the Beast.
At Epcot she liked watching the fountain and riding the Figment ride.
She was not at all scared of the characters and really seemed to enjoy them. I often put the pictures on slideshow and let her watch them on the computer.