This is tough for me as I like many of them for different reasons. I chose Movie Stuff because I love watching my sims cuddle up while watching films and I also like the items. Laundry Day, Kids Room, Vintage Glamour, and Romantic Garden are not far behind though and if you asked me on a different day I may choose one of those instead. When deciding between stuff packs, my advice is always to read the SimsVIP guides or Carl reviews so you can get a good idea yourself of what you're getting as every player is different and prefers different things.