Not GP, but I do prefer the very direct control you get with rcctl (OpenBSD), openrc (Alpine),... Systemd often feels like autoconf. It's needed when you really want the capabilities, otherwise the opaqueness and complexity feels very much cumbersome when you're dealing with a simple service.

I do like the Unix way of having different components handling different tasks instead of having different things which are entangled with each other. It encourages transparency.