Why google is the best search engine on earth?

It is true that there are a lot of search egine for web information retrieval.
But we rely on google onl,why? There are so many reasons including these:
1) You get even the most obscure web pages on google,that are not even crawled by Yahoo or MSN.
2) You get the best relevant result as though it has been picked up by some human intelligence
3) You get result in fraction of a second
4) You get the best suggestions
5) You see a simple but beautiful interface
6) You are prejudised for google
7) You have the most versatile operators available to filter-off your searches
8) You get goole available everywhere within seconds,even on the go
9) You know MSN sucks
10) And You know yahoo once depended on google search result!
Here are some helps you might have overlooked in google help.Just as you have shown patience to read till now.
+ Operator:common words and characters such as where, the, how, and other digits and letters which slow down your search without improving the results. We'll indicate if a word has been excluded by displaying details on the results page below the search box.
If a common word is essential to getting the results you want, you can include it by putting a "+" sign in front of it. (Be sure to include a space before the "+" sign.)
For example, here's how to ensure that Google includes the "I" in a search for Star Wars, Episode I:

Synonym search
If you want to search not only for your search term but also for its synonyms, place the tilde sign ("~") immediately in front of your search term.
For example, here's how to search for food facts and nutrition and cooking information:

"OR" search
To find pages that include either of two search terms, add an uppercase OR between the terms.
For example, here's how to search for a vacation in either London or Paris:

Domain search
You can use Google to search only within one specific website by entering the search terms you're looking for, followed by the word "site" and a colon followed by the domain name.
For example, here's how you'd find admission information on the Stanford University site:

Numrange search
The numrange operator searches for results containing numbers in a given range. You can use Numrange to set ranges for everything from dates ( Willie Mays 1950..1960) to weights ( 5000..10000 kg truck). Just add two numbers, separated by two periods, with no spaces, into the search box along with your search terms, and specify a unit of measurement or some other indicator of what the number range represents.
For example, here's how you'd search for a DVD player that costs between $50 and $100:

Fill in the blanks "*" search
Sometimes the best way to ask a question is to get Google to 'fill in the blank' for you. You can do this by adding an asterisk "*" in the part of the sentence or question that you want filled in.
For example, here's how you'd search for who invented the parachute:

Operators like site and related are particularly helpful in searching a domain only and getting related websites.

Happppy Goooooogling!