What is your favorite part of this game??

It can be from any of the Sims games. I'm just curious what your favorite part is. From Sims 1, is it going to shop for pets in Unleashed? Do you like to go to Magic Town? In Sims 2 Pets or Seasons, do you like to breed pets, or have your Sims get struck by lightning? In Sims 3, do you like building, furnishing, or playing with a family? Tell me your favorites!