What Sim character trait is most important to you, and why?

Ugh, yeah, we soooo need to be able to give our sims more traits in CAS. Nearly all of my sims have Active (because most of them are buff, athletic, ripped, toned, muscular, and/or fit), Romantic (because they have a voracious whoohoo life), or both, leaving very little room to give them a little bit of extra... I want to say personality, but we all know that isn't it with these traits... I guess just something extra then.