What's the worst expansion pack and game pack and why?

For Expansion Packs, (EP), for worst, I would say "Cats & Dogs". I love the idea of having a virtual pet, but getting the people Sims to do things is enough of a challenge. Then having virtual animals running around... Hmm...
Unless of course there was a new superhero career, CAT-MAN! :D
https://i.imgur.com/5o7ZhOc.jpg