I use DuckDuck go as my default search on my machines, but I think the fact that Google is not anonymous does give them a big advantage. An obvious example of this is when I search for "Django" (I am primarily a Django developer). DuckDuckGo will return results about the film as the top hits, whereas Google already knows that I mean Django Web Framework and will return those as the top hits. I appreciate the fact tha…
And DuckDuckGo is not really comparable when you don't live in the US. Google is far more superior, even without your info.
Ideally, the world needs more internet search engines - as of now only Google, Bing, Yandex, Baidu come to my mind. And various initiatives like Cuil, Wikia Search, etc failed or good ones like Exalead (EU sponsored Google competitor, bought by Dasault), Blecko (bought by IBM for Watson) got bought and vanished for general public but are still active for internal company purposes.
And why do we need more web search engines? Because of the filter bubble, censorship and privacy concerns, etc. - it's never good to have to deal with a mono- or duo-poly (which is already reality, as in most countries on 1-2 of them return really good search results, and the others are barely useable for local native language search phrases).