I am a builder that has all the Sims 4 packs. I play when I get a new pack to test out how objects work (i.e. spacing, appearance while active). This is my list.
Favorite:
1. Get Together (best building set overall, lots of good piece that work with other packs)
2. Cats and Dogs (best building set for creating classic homes, beachy cape cod homes, cottages, grandparent homes)
3. Realm of Magic (best building set for creating magical builds, wooded shack homes, and cute cottages
4. Movie Hangout (works great with city living to create fun boho builds, I love the furniture)
5. Strangerville (best building set for victorian builds, underground bunkers, trailers, mobile homes, also lava lamps!)
Least Favorite:
1. Parenthood (The ugly blue glass in the cabinets, great time to update babies for people that like them)
2. Laundry Day (I hate doing laundry in real life, but yes most of the homes I put on the gallery have laundry facilities, so meh)
3.Luxury Party (Just a cash grab, have used this pack once for one item)
4.Island Living (Perfect opportunity for a hotel game play, mermaids are pretty, bland, and useless, a child of the ocean would eat fish, fish eat fish)
5. Cool Kitchen (It comes with one style of counter/cabinet set, barely any kitchen clutter, and the cabinet is just bland0
