You know, I used to use Yahoo all the time. Within the past 2 weeks, though, I have switched over to Google and the results seem to be much better than they used to be.
Google. Despite the fact Yahoo is technically better in terms of a search engine. I use Google for all the extra bits.
I have always used both, and still use both for different purposes on a daily basis. I have found that Google over the years has become more tainted and its harder to find the true grit homegrown information one used to be able to find on there and it has become bloated somehow, I think by its own interests in becoming an advertising empire it has lost its grass roots sensibillities...... Yahoo still remains more honest when it comes to backlink counts and simple searches.
I am using yahoo as a search engine, but sometimes I am using Google. Google is my second choice when I am having a hard time searching for something in yahoo, but i also love Google those two are the same for me.