Then I didn't understand the OP's question. Let's analyse it shall we.
..for a newbie to use for developing database applications using Firebird?[emphasis mine]
. My interpretation was that the OP wasn't asking about installation but about use. Can you explain to me why one distro would be "better" than another for using already installed applications? That was what I was commenting on.
It's fair enough to claim (not without stimulating much debate) that deb-based distros are easier/harder to use for installation of applications than rpm-based systems. But this is a far cry from asking what the OP was asking. At least that was my understanding of his question but I tend to be rather literal-minded.