Which pack has been most influential in your game?

Seasons for the weather and holidays (especially since I use holidays to block out summer vacation and I'm really glad I did, it's nice to give my kids/teens a break from school to just have fun with friends for a couple weeks) since it really helps it feel like time is actually passing, and I like that the seasons are different in each world. Parenthood for the enhancement to the overall family interactions and especially the character values. I like being able to influence the values while the sims are still growing up, and then once they age into YA and the values lock in, they really impact the autonomy of the sim. I even go in and cheat the character values for sims that I make who are already past the teen life stage. It especially helps my mean sims actually be mean and cause problems, which is otherwise hard to maintain since sims are always being nice to each other. The life stage phases the kids/teens go through are nice too and help make the gameplay more interesting, and I like that the phases are different between the kids and teens.

2nd tier are Cats and Dogs and Dine Out I suppose. Maybe Get Together as well since I use the club system to help populate large lots, and I make a lot of restaurants and parks that make use of the café bar. 3rd tier is probably City Living, just because I love the world and the festivals are still fun to go to sometimes. I use the city as like a getaway for my teens and YA sims to have a fun night out with friends, and just pretend they take public transport from whatever other town they're visiting from.

I would say Seasons has the most impact on my game since weather happens daily. The seasons themselves force me to change my gameplay to adjust to them.

Parenthood also has a big impact on family play. I forget it's not base game. Too bad it wasn't incorporated more into the high school pack.

Get Together definitely gets an honorable mention. I love the clubs feature so much!

Weirdly, for me, I have to say the most influential pack has been City Living. I incorporate San Myshuno into almost every save, regardless of where my main sims are living. Nearly everybody eventually visits the city for one reason or another. I have three saves where it's the home world of my sims, and it inspired an entire SimLit story I've been working on for some time.

I didn't expect I'd use it so much. In real life, I'm not much of a city person. All the packs I have are important to me. Especially those with occult sim types, since I play with those a lot. I love Get Together's club system. I adore Snowy Escape. But City Living is the only pack that manages to sneak it's way into nearly all my stories.

Island Living. I am on my 8th generation and half way through I decided to make one of my female sims a mermaid not realising that EVERY child she has would then become a mermaid. Sooo now I forever have mermaids lol

Get Together the club system was a game changer well besides it not working in high schools

Seasons and vampires

Seasons, Get together and cottage living. I always play with clubs and simple living. I would also mention off the grid but it was basegame if I remember correctly.

Seasons: Affects everything in every world, and I also use the clothes and furniture a lot.
Realm of Magic: Half of my occult sims are spellcasters, and almost every world has at least one living in it.
Laundry Day: A mandatory addition to all of my households ever since it came out.

Seasons, RoM, Parenthood, Dine Out & Laundry Day

ETA: also, while less influential, I wanna give City Living & Eco Lifestyle an honorable mention because I actually use these packs a ton. I really wish they had put an apartment building near the pier in HSY, woulda made the world even better for me. I just LOVE apartments and still really hope they'll let us build our own one day.

Get Together- the clubs are a big part of my gameplay