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I know there are already lot of stuff available that give us comparison factors. i like http://www.seomoz.org/blog/google-vs-bing-correlation-analysis-of-ranking-elements

Yes Google is the search leader but i do not want to miss the opportunity if we can get with a little extra efforts. Is there any google vs. yahoo comparison?

I have started my research to list all the factors Yahoo or Bing giving more importance compared with Google. This bible if successfully prepared will help everybody. Can anybody help me resources specific on the topic, that can help me?

Better looks to prepare a comparative checklist on factors yahoo, bing and google give importance. Repeat the same on competitors will lead you to the final decision.