Of course Google is number one user friendly search engine but others are not far behind of Google. Take the example of Yahoo and ask.com etc. It mostly depends which is most suitable for your needs.
Probably google will doing the best service for the internet users and the google search engine algorithm is entirely different form the other search engines like yahoo and bing for the always I like to use google and bing and thanks for sharing your thoughts....
because of google's simple theme, its one of the most used search engine. there are no problems with its navigation and loading page. Unlike other search engines which looks complicated for normal people to use.