Big E is right, it depends who admins the thing.
I use both FreeBSD and Linux out of the box FreeBSD is more
secure.
But if you install any linux version and make sure you leave
the crap out which you´re not going to use it really is a nice
system.
All these different distro´s don´t matter either. All Linux versions
use the same kernel anyway it´s just the layout what´s different
and the stuff that gets installed.
Make sure you firewall you´re machine which is necesary no
matter what OS you use
DynaMite