I have gone through my search history in Google and compared it to Duck Duck Go. The results are pretty good for most queries and really good for some queries. Some good results:

* http://duckduckgo.com/?q=%09dragon+age+review&v=d (Drago age review)

* http://duckduckgo.com/?q=surrogates+&v=d (surrogates)

Great overview for reviews and the engine knows that "surrogates" can mean different things.

Some lacking results:

* http://duckduckgo.com/?q=python+unix+time&v=d (python unix time)

* http://duckduckgo.com/?q=Marc+Cohn+-+Walking+in+Memphis&... (walking in memphis)

"python unix time" does not return any matches. Google's video results are superior when searching after "walking in memphis".