I think this is a question that a lot of people would like answered with the recent book releases many people will not have faced the new Chaos Daemons yet.
I have added these polls to the right hand pane (scroll down a bit if you can't see it)
I have taken the old expired polls down (the questions were: are magical items worth it, players gaming style and number of characters used in 2000pt games)
I will publish the results from the expired polls in a couple of days.