Sim 4 is more reality. They get hurt when you make them fall in love someone else. Sim 4 is more like we human go through in reality. Just like it. Worth the money and way better then the rest of the other sims plus you can custom the sims more to your look all the features. Check youtube
I think that is to everyone's liking, personally I really like Sims 3, it is more complete and much more real daily life, Sims 4 has better graphics but they have removed many things from previous sims.
Sims 3! The sims are my guilty pleasure so I have all the base games and all the expansion packs. The graphics are better on the sims 4 than any of them. I just feel like the sims 3 is better because of all the options! You can also go everywhere in the neighborhood without it loading.