Well google has achieved this goal after giving satisfactory results to everyone that's why its most preferred search engine by everyone.
Google is the largest. Unsure of Bing's algorhythm, but Google has the most users for websites, and Bing has the most users for images.
They have different algorithms, but at the moment I would, honestly, have to say Bing is bringing in better results because Google is destroying the results with all of their updates. What is universal, however, is that a website needs good backlinks (at a minimum) to rank.
Both are a search engines. Google is owned and operated by a company of the same name and bing is the latest search engine owned by microsoft. For me, google is more reliable than bing.
There is much difference in algorithm of both search engines. The requirements needed for ranking in Google and Bing is different . Google Gives Importance to Site Content and quality links where as Bing gives importance to user friendly sites .
It takes longer to get indexed in bing and also it's harder to rank. Don't worry about it too much most people use google.
Search engine algorithm (whether Google, Bing or even Yahoo) changes and evolves. But most people preferred to rank on Google.