[viccuad]

Why would it be a better fit, because of the package management?

Package managers are irrelevant. The relevant part is the quality, methodology of testing, existing written policy and technical requirements for the software. That you at the end deliver it in a deb, rpm or what have you, amounts to little.

Debian Stable (with its quality, Debian policy, testing, and stability of package major versions) is closer to CentOS. Fedora would be, as Debian Unstable, too fast moving for CentOS usecases.