I mean, Sims 3 > Sims 4 but Sims 4 still wins out over FFXV in my opinion. Sims 4 isn't bad so much as Sims 3 exists.
Neither of us has even played FFXV though, to be fair. There's a chance one or both of us might really enjoy it when we buy the Actually Final For Realsies, No Takebacks This Time Honest Edition in a few years' time.