@T_Mari Good questions!
1. Honestly I don't like base game families a lot of the time, I always feel the need to give them massive makeovers. Some of the newer families aren't so bad, but when it comes to populating my own worlds from scratch I rarely use the "classic" families.
2. Yes I do. I like to make lots of characters from my favorite shows, movies, or stories, and even some from my own works, so I tend to add them into my game and befriend them.
3. Not really? I've never thought about it to be honest. A lot of the time my long term households have mates crafted just for them, so it's never been much of an issue. The only sim that pursued an uninterested sim was my gold digger sim. She usually gets that money.
4. Normally no, I try to keep sims faithful, the exception is again, the gold digger sim. Most of the wealthy sims are married, so how is she supposed to become the new wife, get the money, and then kill her husband for the house and the cash without making him single? She can't!
Some questions I have for others:
1. What is your favorite world and why?
2. What expansion pack do you feel improved your gameplay the most? What feature was most important?
3. What is the largest family you've ever had?