I can't really analyze this now because I have made seperate bids for each network. I now bid so low for content clicks that they are way down, unless it's a 'cheap' keyword. I did this because I didn't like the sites that were showing my ads.
("Content" network is kind of misnomer, isn't it?)
I can get *waaaay* more traffic from content than search, even though I now separately price my content bids very low.
I use lots of (~100) negative keywords and some specific domain exclusions to keep traffic "quality" up, ie cost-per-conversion down.
(At the moment I'm finding the Search Network to be very poor value, and have disabled it for most campaigns.)
Rgds
Damon
PS But yes, it *does* depend heavily on your topic.
It's encouraging to know that you can get more traffic than search though, i like that!