The order of ranking is approximate, not exact.
1. & 2. Country Kitchen and Courtyard Oasis - I use Country Kitchen a lot. Courtyard Oasis is beautiful and also mashes up well.
3. & 4. Incheon Arrivals and Fashion Street - Just got these so still getting used to them, both welcome. They update fashions for certain characters and expand play for some cultures. For me, they just extend some of what is already in the game but I like the added options.
5. Industrial Loft - I Just got this and am still learning about it but I'm a fan and see where I would use it. Hipster kit.
6. Throwback Fit - Haven't gotten this yet. I like the retro tennis dresses but a lot of it isn't my style. Maybe down the road I'll do it such as if they put kits on sale but I'm not in a rush. It didn't jump at me.
7. Bust the Dust - I'd want a way to regulate which households have this gameplay. There are some where it would add to the game but I think I'd find it annoying if I couldn't switch it off. Some of my households may be themed so that this wouldn't work.