I wish there were more negative emotions ... or maybe the negative emotions were stronger.
I don't fully understand the hates children trait. While I don't expect a sim to be mean to his own child ... i don't think he should also just go around auto-hugging, cuddling and spontaneous acts of love. He gets tense around the friends of the child ... he loves to smash the dollhouse and make the kids cry ... but here champ, have a hug.
My insane sim isn't really insane ... sure he talks to himself a lot ... but if that is the definition of insanity then I am insane as well. And sure, his moods can quickly change ... but thats about it. Let him be obsessive ... let him do something crazy, let him decide its a good time to go jogging outside naked ... but no. He is insane cause a box says he is insane.
I wish they would just push the limits on the negative side. Let your hot-headed sims want to fight everything that passes by on the street when they are angry and not just angry walk all over the house. Let the gloomy sims stay all sad and gloomy and mope around and make others be miserable with them. Let the evil sims be evil ...
Let the darker sides out to play some.
