Probably Fallout.
It has the tightest design out of all of them.
While others may have more choices in what to do and how to play the game it comes with a lot of bloat that can outstay its welcome.
https://bestgamingtips.com/sims-4-woohoo-partners/
We can now just be friends with benefits with other sims and woohoo without any romantic connection at all.
I went to an event NPC and asked him to be my woohoo partner at like 30% like rating and he said yes so I fucked him in the bushes like...