I also had similar results. On the searches where I chose something I knew about to search for, I always chose Google's results. On the one example where I chose a suggested example (Halloween Costumes) I chose Bing. My other searches were for a specific camera, the type of a battery used in an old film camera, a historic sail boat designer and a Rails method.

The two thoughts I had were: 1) Have the suggested examples been prescreened to favor Bing? 2) Do the Bing results favor a shallower explorations of topics while Google's favor more in depth ones?