Bing is actually much better than DDG (for recent near real time results) and now it's in many cases better than Google (less SEO spam, probably due to its size). It is also more politically neutral than Google in its results - I started out using Bing for anything politics related, but now switched for many technical and financial searches too.
Bing will almost by definition be “better” than DDG because DDG explicitly does not collect as much personalized information about you. Bing searches should be more relevant than DDG searches.
The whole point of DDG is that I do not want a hyper personalized search experience, which may lead to worse top results, but probably not stop me from finding what I want within the first page of results, which for me is a more than great trade off for protecting my privacy.
Personally, I've given up on results quality. It ranges from bad (Google) to worse (Bing) to barely usable (DDG).
Even if it's barely usable, I'm tired of the constant tracking and ads. Anyways, Google is already so full of SEO spam that I usually have to type in "[search term] [relevant web site]", and even DDG can handle that.
