I have been a long time Redhat fan Until RHEL came about and left it to go to OSX. ;P I have been messing with Debian and Fedora but fedora always seems to do weird things lol.
With that said, I started using CentOs at home and it's pretty great.
I guess it's the closest I can get to owning RHEL 6 without paying for it.
I have been using centos for about 2 years now on my VPS at a registrar. Only 1 time have I had problems with this os. My mail server daemon died and just had to restart the service.
Awesome job on a stable OS.