I am torn here. I like things about all the systems. I think the main thing I want is for there to be a lot of options. I want them to be more impactful than now, but I feel that is more a limitation of the current Sims' personalities than the aspiration system itself.
I do really enjoy being able to change dreams and achieve more than one (perfect for a developing protagonist), but they do not seem as grand in 4 compared to 3 and 2. In those, you really had to work for them and they were worthwhile. Now you have to complete a lot more for that same sense of accomplishment.
Considering that, a hybrid between 4 and 3's sounds good (with more flexibility, impact, and reward), but I would happily take 3's entire personality system back.
