Lately I've been trying to use Yahoo & Bing consistently in stead of Google, to break the habit and to get a feeling for how good they are.
I must say that both offer very good search results.
Also, with Bing, you avoid all the "fluff" that Google insists on polluting the SERPS with (eg. video, images, blogs, maps, shopping, so on and soforth). The BIng SERPS are "just SERPS", plain and simple. This is really great, IMHO.