I'm sure I'm missing something because my suggestion seems (to me) very obvious (plus I'm late to this thread). Here we go:
I like Ubuntu. I use Edubuntu for a workstation lab I support at a classical school. Their needs aren't demanding, and Ubuntu Just Works(TM). But I never upgrade to the latest release until 2 or 3 months after it's out. That's partially because my schedule doesn't allow it, but mostly out of caution concerning bugs and regressions (esp. support for our old, donated hardware).
So, what's wrong with using Fedora but staying, say, 3 months behind the latest, most bleeding-edge release? For this to work, I guess one must assume that the real show-stopper bugs are fixed reasonably soon after release.
The one problem I see is that you're probably locked into a 6 month upgrade cycle. Fedora would need to provide support for 15, not 13, months in order to back off to a one year upgrade cycle. (FWIW, I haven't actively used Fedora or related dists since Fedora Core 1/2, but do have a bunch of RH experience from times past.)