I'm very involved with Sims 2.
Do you love the characters?
Kind of ... yes ...
Do you feel that Sims is more like life than life itself?
When they die ... do you ... cry?
... no ...
UPDATE: Here's a much nicer Sims 2 link. I'm told the prime improvement of Sims 2 over Sims 1 is that the characters go through all the stages of life (from babyhood to death--before, they were frozen in time). Another innovation is that each character has an overarching aspiration in life (popularity, romance, money, knowledge, or family). And "there are a lot of random weird things that can happen," for example, you can be abducted by aliens, your house can be haunted by Sims who have died, if you aren't very good at cooking, you can set the kitchen on fire and die, and if you get lonely, a large imaginary bunny may come and socialize with you.
Sounds like Donnie Darko.
But it's a friendly bunny. It's not a mean bunny.
ALSO: I'm told all Sims are bi-sexual.