Oviously GOOGLE is the best search engine. You people are thinking why am I asking such a foolish question, Am I gonna mad. No, Every one know it But Do you know WHY is Google Best search engine.
There are 100s or perhaps 1000s of search engine out there including biggest one like Google, yahoo, Bing, Baidu, Yandex are the leader of this market, But still There is no competition with GOOGLE.
Because Google provide the best result in industry as compared to others.
Another thing is that the Homepage of it is clear and loading lightning fast, Even people use its homepage for checking internet connection that their Net connection is working or Not.