I would suggest use the distribution you prefer (they are all pretty similar).
You may want to use Ubuntu because it is one of the most popular so you know that your software is likely to work on other installs of that distribution.
(At the same time you should make sure to statically compile any libraries so that distribution specific library conflicts are avoided.)
Sometime a boring stable distribution is best (Like Debian) so you do not need to keep updating your workflow to match the whims of the latest hip and trendy Linux feature (in particular systemd, Wayland (and to some extent SDL2.0)). This is probably also the reason why SteamOS is based on Debian.