I use Bing whenever I'm dissatisfied with Google's results. Bing has always returned worse results in this case. YMMV.
It feels like a vote of no confidence. I would be absolutely shocked if Google's algorithm doesn't have a special alarm bell for "2 dozen search query redefinitions and then they typed fucking 'Bing' into me."
That's funny. I'm going to start doing that.
I get frustrated w/ Google when I do a search and the top results do not have a single instance of one of my search terms on their pages. I have no idea why they'd do that. So I switch to Bing in those cases.