@VampireSapphire We sound like we have similar interests. :smiley: Those were my favorite expansions in Sims 3 as well.
You might consider these packs:
Expansion - Get Together. You might have not gotten it so far because it was advertised like it was all about partying and going to night clubs, but the club system itself can be really useful for family style play. You can set up kids play groups, homework groups, house cleaning and gardening groups, or almost anything else you want multiple sims to do autonomously. You can also briefly switch to other households and set up all kinds of clubs to have sims you don't normally play do things autonomously on community lots. After you switch back to your main household, those other sims will continue to meet in their clubs if you travel with your family to the community lot where they meet. You will see them show up and do the activities you assigned them. It's great for having other families show up, together as a family, at places where your family goes. Also, Windenburg is one of the largest worlds that has shipped with any of the packs, and it's beautiful.
Expansion - Seasons. Being able to make you own holidays is fun, the weather adds variety to the sims' days, and they actually included toddlers in a lot of the seasonal activities.
Game pack - Realm of Magic. If you like the supernatural stuff, having spellcasters is fun. They're fairly well done, like the vampires, and the world and hidden lot that come with the pack (though small) are gorgeous.
Game pack - Dine Out. I enjoy having my sims go out to eat.
Stuff packs - Kids room stuff, Toddler stuff and Backyard stuff all offer something for kids or toddlers to do.
Obviously, there are some issues, bugs and puzzling design choices with any of these packs, as there are in pretty much all the packs, but if you are okay with mods, there are mods to fix almost anything that annoys you.
Personally, I always wait for a sale for expansions (50% off). And I usually wait for a sale for game packs (25% off). Stuff packs don't seem to go on sale much, but the other two go on sale frequent enough to wait for in my opinion.