Stuff packs are the most personal ones. Someone might be very into the style of the fitness pack, while someone else really prefer the vintage glam style or the movie hangout vibe. Do you play a lot with kids? If so, toddler and kids room might be a good idea. If not then they are useless.
Check the contents of each pack on Origin and get a feel for what would suit your game.
(also beaten, haha)