Generally the Fantasy Land rides are great for little kids. Peter Pan is awesome. Often a wait. Mr. Toads Wild ride is classic. It is a little boisterous. Alice in Wonderland is good as well. I also enjoy Winnie the Pooh - that's in Critter Country. Storybook land and the little train that circles it also nice for little kids. Very mello. Buzz Lightyear is fun but might be hard since it is an arcade ride- so you are aiming and shooting at things.
Peter Pan and Buzz Astro Blaster are two of my sons favorite.
Thanks! Your answer is awaiting moderation.