Favorite

Favorites can be set for a Sim in Create-A-Sim as part of their personality in The Sims 3. There are three types of favorites: Food, music, and color. Sims will tend to choose their favorites when they can.

Colors
In the Sims 3, Sims have a favorite color. The purpose of this is yet unknown. Note: The Sims 3 engine is rather picky about the hex value of the color.

Food
The purpose of the favorite food is apparent: Sims who eat their favorite food will clap and laugh as they eat, and get a mood boost. Sims will choose their favorite leftovers more if told to eat.

Music
Sims listening to their favorite genre of music will get a mood boost.