I'm also still trying to figure out in what way systemd is supposed to be "better".
https://wiki.debian.org/Debate/initsystem/systemd#Why_Debian_should_default_...
Counter-arguments are easy to find as well. For example : http://judecnelson.blogspot.fr/2014/09/systemd-biggest-fallacies.html
Sylvain. Pensez ENVIRONNEMENT : n'imprimer que si ncessaire