It really depends on what you're looking for and looking to do. I personally prefer Ubuntu's LTS releases for day-to-day use, but for the production servers, I

It really depends on what you're looking for and looking to do. I personally prefer Ubuntu's LTS releases for day-to-day use, but for the production servers, I prefer stepping out of Linux and into FreeBSD. I've found it to be much more robust, while at the same time not holding you back to ancient software versions (like CentOS/RHEL). Yet, it really comes down to your preference.