I would prefer D, but I ended up using C++ for one of my projects because it has all the libraries, and these smaller languages only have bindings for some of t

I would prefer D, but I ended up using C++ for one of my projects because it has all the libraries, and these smaller languages only have bindings for some of them. So my answer is: if you can do all you need in the base language, something more modern like D-lang is preferred, but if you need some particular library, you either have to add all the bindings yourself, or use C++.