Rich Moore directed Wreck-It Ralph. Wreck-It Ralph has genre Animation
[Human]: Could you recommend a director similar to Rich Moore? [Assistant]: Rich Moore directed the animation film Wreck It Ralph. Do you like animation films? [Human]: Sure do! They're usually pretty good! [Assistant]: Another good animation film is Treasure Planet by Ron Clements. [Human]: That's a good place to start. I'll have to check out his work in general. Many thanks for the recommendation. 
Another great animation director is Tim Burton. You should check out his film Alice in Wonderland. It's very similar to Wreck-It Ralph.