Funny. I use DDG as my default. Frankly, I think it's results are way better than Google's. Yes, they are more simple-minded and less "intelligent", but then they are much more predictable as well. As such, it took some getting used to, but now I feel like I search more precisely than I ever would with Google.
Way too often, Google will try to be "smart", and search for some "intelligent" interpretation of my search, where no such thing was called for. Especially for technical, precise searches for "strange" strings, this can get really annoying.
Also, those bang-searches are just genius. I regularly search Wikipedia, programming language docs, or maps using those. And yes, sometimes Google as well, mostly for fuzzy "how do I" searches or searches that I don't know precise keywords for.