I switched to FC2 and I still find it the most stable of all Fedora releases. No glitches. No problems. Works like a dream :) and I use it all the time on my desktop :D Have installed PCQLinux 2k4, 2k5 but neither of them met my expectations. 2k6 was an utter disappointment :*(
I think the same too. In fact FC2 detected my sound card which neither FC1 nor FC4 detected. However FC5 seems to be much better and I might say it is the best Fedora release ever. GNOME 2.14 is cool too. I made the switch to FC5 since I found the GNOME/Gtk+ libraries too old in FC2 and could not successfully upgrade GNOME 2.6.