I own all stuff packs except for My First Pet*, Backyard, Vintage Glamour, and Luxury Party. In your opinion, which one should I get. *I don't mind the cross pack stuff for MFP and C&D. I own Cats ...
Oh that's another thing about MFP! If you have Kids' Room SP, Toddlers, and/or Parenthood, a lot of the furniture really works with the younger Sims! :)