@Elliandre I love that! Trust me, you won't regret adding Butter into your game.
When I re-imagined my Sims game, I replaced all EA lots with lots from the gallery. I try to stick with about 5 builders just to keep things consistent. For example, I use a lot of Simlicy's builds. Then I went through and gave some of the more iconic sims makeovers to fit my sims style. That's why my Pancakes family may look different from yours. I did play around with genetics, but for the most part, all personalities are the same or enhanced with character value traits and/or reward traits.
The only family that I did a complete 180 with is the Landgraabs. I liked the story from the Sims 3 better, so in my game, their traits, careers, etc. have been completely altered. Now Geoffrey is a doctor, Nancy is a high-maintenance CEO, and Malcolm's personality is a mix of "frat-boy" and "Gen Z influencer." Those terms are in no way intended to be offensive, btw. Honestly, it's kind of fun!