From 1 to 3
Going from the first series of the Sims game to the 3rd one is really hard to get used to. For one, there's a LOT more to do. I'm not stuck just being at the house. What I love the most is that my sim doesn't have to go to the bathroom like 20 times a day. It's a relief that I can actually focus on doing things and not have to worry about their moodlets going down so often. I absolutely love the new game. It makes me curious as to what the Sims 2 game was like because I never got a chance to play it.
Customizing your own furniture and characters is the best part. I love it. I love that I can add my own designs to everything. I'm still trying to get used to it but I am loving every minute of it. :)