Francois Briatte has conducted a survey of the web sites, run by the prominent web designers who adhere to web standards.
The survey results are found here http://phnk.com/design/survey/.
He has taken their pages and tried to measure it on various design elements and the results are worth to watch.
The things that interested me were :
1. 60 percent of those website have fixed with layout.
2. 80 percent of them have the main content, in a white background.
and I was also able to compare myself and see where I am standing.
Check it out !