Are there trends or stats on quality of answers for audiences in SO/SU/SF and if there are any relationships among their users?
I'm curious because usually I get decent answers on SF. I don't often go to SO, but am afraid of posting to SU because it seems to feel as if it's the place for people who are smart enough to overclock their CPU's but can't take the time to Google for answers first, but maybe that was just a bad impression I had. I tried posting a question to SU about a Vista screen lock issue, and it had 9 views, no answers. If I tried putting it on SF I know that I'll get it migrated and flamed, even though the issue occurred on a system I had to repair at work for another user that was driving me nuts (the issue...and Vista, not the user).
That got me wondering about whether there are any numbers that (in)validate my feeling that generally there are different amounts of quality answers among the three groups and that it affects your chances of actually getting help.