For me, it's hard to choose. I haven't played The Sims 4 though. I loved the original & loved The Sims 2 even more, specially the expansion packs, 'Open for Business' & 'Pets'. It took me time to get used to the new things in, 'The Sims 3' but then I got addicted to it just as much. The Sims 3 introduced open world which is absent in, 'The Sims 4' For e.g. every time a Sim wants to go out, there would be a loading screen. And the cars you see outside are just decoration. Hopefully it's better as a life simulator than other games. Off course these are just the main games I'm talking about other than the two expansion packs I mentioned. Each base game has many interesting expansion packs.
Sims Medieval was 7/10 for me. It has a big map and no ride in the base game so walking/running outside was tedious for me. I don't know much about its expansion pack.
Last edited by hugh; 10/18/15 10:14 PM.