I like erratic and squeamish a lot as they actually do something (and yes, I like to pair squeamish with neat or someone who fishes a lot or put them in the same house with a slob because it is challenging and funny!). I also use mean and hot headed - evil does not really do anything other than that evil laugh thing that I have ever seen. Snob does not seem to do much either. I use jealousy if I want a really insecure sim because that is really what that trait amounts to - they are even jealous of their own children!