Back when I tried both more extensively a few years ago, Google was a lot better giving me results relevant in Europe and Asia. Bing and duck duck go used to be very US only focused. Which made me go back to Google.

I don't know if or how much that's changed.

the fuzziness is too high (forget searching for specific error messages, prepend !g for that) and it doesn't have a 'verbatim' mode (on google search: tools -> verbatim) ..