Which Sims Game is better?

[Shiro Kame]

I've had my Sims 2 copy and its expansion packs for a while. I wanted to get the Sims 3 when it came out, but none of my family's computers met its ideal requirements. Now I'm able to get 3, but the Sims 4 has come out last year. I'm now debating which one to get. I could get the Sims 3 since it's available on Steam and more accessible, but Sims 4 seems to have further natural interactions without the player having to direct their sims. However, 4 has been refferred to a "dummied out version of Sims 3". Which one should I get...?