Jeff Lax and Justin Phillips posted this summary of attitudes on a bunch of gay rights questions:
They did it all using multilevel regression and poststratification. And a ton of effort.
P.S. My only criticisms of the above graph are:
(a) I'd just put labels at 20%, 30%, 40%, etc. I think the labels at 25, 35, etc., are overkill and make the numbers harder to read. And the tick marks should be smaller.
(b) The use of color and the legend on the upper left are well done. But they should place the items in the legend in the same order as the averages in the graphs. Thus, it should be same-sex marriage, then 2nd parent acdoption, then civil unions, then health benefits, and so forth.