SC3K had a masterfully executed advisor system that felt both classy and warm. Ditto its music and art.

Unfortunately for SC4, they proceeded to make all the advisors 3D-rendered Sims. For SC2K, well:

https://www.somethingawful.com/news/simcity-advisors/4/

(that was the least offensive page to link; for the canonical experience start at page 1)