I think google gives a much more better results in image search. I have encountered so many problems in image searches. Google has given me the nearly exact results that i needed. And other search engines just flattered me in the image searches.

I mostly use yahoo and google search. I did not really find any big differences in the result provided by both of them. Even if I count it image wise, I still would say that I did not encounter any noticeable differences.

Well I think yahoo gives better search results if you are talking about images. Mostly search results of both yahoo and Google are same, but I prefer yahoo for searching.

In terms of SE, Google and Yahoo are the leading...but most users prefer Google just because of speed in results....