I've just applied for Chitika. I read some reviews about Chitika and i found that Chitika pays well for High US Traffic. So it would only be good if you have an established site with mass traffic. I doubt it will ever be better in payouts than Adsense, though keep in mind Chitika pays in paypal which is more useful for some people (me) than others using Adsense. Just my 2 cents... - Ratchet
I don't think clicks are that comparative to AdSense, however this what I got with my first month with Chitika on some small sites of mine: $2.46 - This was generated over 11 clicks... which isn't too bad!
i'm using both of them. I started my site just two weeks ago, and from adsense I earnd 3$, from chitika 0$. But in adsense I have 14clikcs, and it's just 3$...