Planet Crazy 1928

Here is Walt Disney's first showing of Micky mouse.
In comparison to the Felix The Cat animation you can tell the difference in Disney's animation, in my opinion it far surpasses that of Felix and you can see why it became so popular.
The animation also featured synced sounds which was the first animation to do so.
It was created 5 years later then the Felix animation but the same tools and methods would have been used (apart from synchronised sounds perhaps) in both but Walt Disney, i feel, understood the method of good story telling and, in my opinion far surpasses Pat Sullivan's skills in animating.