I plan to play Sims3, 4, and Paralives. I see no reason to pick. I might want it all and have a bunch of time and pull out Sims 3. I might pull out Sims4 when I have only a little time. I will play Paralives for what it brings.
Sims5 is another story. Open world is huge for me and without it, it will look like a start over version of the Sims4. I have loads of things I can do in the Sims3 and Sims4 and Paralives when it comes out. I bought the whole store, all Sims3 packs, and all Sims4 packs, but another closed world will probably make me skip The Sims5 for years and years and pick up the games when there's a huge sale after several expansions have been out.
Sims4 was rushed and they didn't listen to the fanbase about single player, which led to changes. They made infant play horrible and instead of better, they took away from many of the pluses in the Sims3. These last few EPs have left stuff out that should've been there. A Sims5 team should go back to Sims 1,2,3, and 4 and expand on all of them to make a better game.
