I think my favourite would have to be Ambitions. While I don't use them as much anymore, I really like the professions, and I believe it was the pack that introduced being self employed. Twinbrook is super pretty in its own quirky way. It was also the pack that added tattoos, which I love.
My least favourite is Supernatural. Not in that I dont like it, I actually like it quite a lot. But it's the game that I use the least amount of features from. I don't ever really play with supernatural sims, so a lot of the content is lost on me. It does contain a lot of items that I love, such as the gem cutter, the indoor planters, and the bee hives.
