I really hate saying this because it pisses me off, but I primarily use DuckDuckGo, which is based on Bing, and I sometimes have to switch over to Google because the search isn't as effective. Especially if I want to put something in quotes, which DuckDuckGo doesn't even seem to recognize. Their image search is not as good either.
I don't want to use Google at all. I hate that it's still necessary sometimes for a decent search.
And yes, I realize that a lot of Google searches suck too. But I still shouldn't have to ever go there. Especially not for something as simple as that.