Too much pressure. I own all DLC at this point. My game is one massive EP and I ain't choosing. Right now, every single pack makes sense in my game. The world will end if I only had to choose one. My sim's world that is.
My own world.....mmm....probably too.
Once upon a time I found myself in the same position that you find yourself in at the moment, so I decided to get a 'starter' bundle for a fair price. That's how I began playing The sims 3.
I'd do the same for Sims 4. Get a variety bundle that includes an Expansion Pack, a Game Pack and a Stuff Pack. That way you can get a better feel and understanding for what's possible in the game and how it works. Base your choice on personal interests, as there's too much to choose from and every simmer has a different play style.
For example, I love occult packs but if you don't like fantasy themed content, there's probably no point in investing in those.
Same with Seasons. At this point I wouldn't want to play the game without a weather system. Other folks couldn't care less about a few miserable drops of rain. Same goes for STAR WARS: Journey to Batuu. A majority of simmers hate that pack on principle. One of my favourites, and so I'd recommend it to everyone. :D
You say that you have no idea about how many packs there are. If you're really interested in playing this game, I'd suggest you actually look at all the packs The Sims 4 has to offer on the website or via the Origin client. Browse through the themes that are available and base your choice on whatever sparks your interest. Then return to the forum and create that poll, so folks can provide you with more insight regarding each pack.
Unless you're very specific about what you're looking for in the sims, no one here can really help you.
We all play our own game, not anybody elses.
