there is no guarantee that google will give you better results than any other, infact they way people optimize for, it wouldnt surprise me if google gives you a poorer set of results than others. The main reason we all optimize for it though, is that 85% of internet users do all their search requests in google, this being said, its alot better to aim your site at a search engine that will yield the most traffic
As you can get the answer anywhere on the net...anyway.. Google is fast, relevant, simple, effective so it reaches the world with this best performance...
I agree that sometimes Google gives very poor answer, but we still use it because of its popularity, easiness to use
Google provides the most accurate search results of ANY search engine, and the most relevant! It is also the easiest of all the search engines to optimize for.
Its all depend upon the user and people.The user search in google search engines mostly so it the better search engine.