Oh that's a tough one. Happy is way overpowered so that always bugs me and I've been sick of seeing constantly grinning Sims since 2014. (Seriously, who does that??) I prefer Fine and I'm really glad to see more Fine buffs happening (even though I still think it should be the default emotion instead of Happy and that Happy shouldn't buff other positive emotions because it's overkill.)
Tense bothers me because it's still a placement holder for Scared in some areas and Sims are always Tense over something so it just makes them seem entitled and fussy to me, lol. I love the Scared emotion but I think it still needs some work to feel more natural with a larger variety of fears and phobias. And it really needs to be Incorporated into the Occult behaviors so Sims can actually react to watching someone get bit by a Vampire or from getting bitten themselves. Relationship hits don't make sense, they should be afraid. Same with the hissing weakness. It would be so much more entertaining if Sims freaked out when a Vampire hissed at them uncontrollably. Or when they watch Spellcasters do offensive spells or see Mermaids summoning storms and Krakens and Aliens doing mind control or using Simrays on people...
I also think there should be a lesser level of Scared for Thunderstorms and other minor fears so that reactions are more natural. Maybe Anxious?