The rules: You need to select one of the answers I've provided. Feel free to elaborate and explain, but choose one and only one answer to each question. I'll post my answers below.
1. Do you like to enter play with detailed character backgrounds?
a) Character backgrounds? You mean stats right? (no, never)
b) I might have a vague idea of who my character is and his motivations (in text terms a few sentences)
c) My character has basic background sketch (a paragraph)
d) My characters enter play with a detailed background (a page)
e) My character always have extremely detailed backgrounds (several pages or more)
2. Do your characters tend to have significant living NPCs in their background (living as in alive during the timeframe play begins)
b) Yes (if so, how many?)
My answers in teh comments!
Edit: To be clear, I'm talking about backgrounds at the start of play. Everyone with a memory will amass a character background as play proceeds simply because play ends up being part of the background; what I am talking about is coming up with a detailed background of events that took place before the game began.