I avoid Insider, Dance Machine, And the Cat/Dog Lover traits. Things I never have use for, I don't need a sim forever bored because I don't use clubs.
I waffle on traits like Bro.
Beyond that, it can depend on if I'm looking for a specific type of sim, but those traits above are instant deal-breakers and my sim will find someone else. I generally don't change a sim's traits, but move on to others.
Sometimes, I'll gamble and have a sim rush into marriage without knowing all their new partner's traits and be surprised, which can be fun.
