I tested 15 best search engines by http://www.ebizmba.com/articles/search-engines. StartPage seems to me the best. Second place - Duckduckgo, I used before for several months. Google is good, but spy. Bing is even bigger spy.
One of advantages of StartPage is correct localization, it gave me first line results in Ukrainian, not in Russian as do all the rest search engines. For the rest I need every time to add in search line -ru and -russian, etc. It's very annoying.