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

For expansion packs, I'd definitely go with Island Living. The world is pretty but that's about it. I got bored playing it after about 5 minutes.

For game packs I had to think about it a lot, because I don't really feel super strongly about most of the game packs. But I'd probably say Outdoor Retreat or Strangerville. I hardly ever take my sims camping, because there's not really much to do. As for Strangerville, I don't like that you can't turn the story off, because sometimes I want to just live in the world without having to play through the story. I could just ignore it, but it's hard to with infected sims walking around everywhere. It's also something that can't really be replayed, because it's the same story every time.