What do you thinks is the best Linux distro for Home Server use ?

GNU/Linux. Oh wait, there's no such distro 😀

Honestly, all of the big distros work equally well for servers. Choose the one that you're most familiar with. If you know how to use APT to install and maintain packages, for example, use Debian or Ubuntu Server. You can run your server as a Docker container (eg. official nginx Docker image) to abstract away the differences between distros.

I'm an all time arch fanboy but a decent Debian will do

Good old Debian always does the job for my servers

@mzeffect
The only distros that only use Linux and no GNU is CoreOS and Alpine.