I would have to side with Abit on this one. I have used the AN8 boards in a couple of machines, and they are superb. They have excellent voltage and fan control options as well. I have the Fatal1ty SLi board in my gaming machine, and with all the fan controls, it is pretty quiet at idle. Once I start gaming, the OTES fans will kick in when the Case gets to 40 Degrees. As soon as I stop gaming, the temps come down and the fans stop. The other machines I have built have been lower end Abit boards, but the fan / voltage controls are still there.
Abit also have the Numeric boot codes on the Motherboard, and that has been most helpful in finding out boot issues. Asus are good, but Abit gets my vote for the tuneability of the settings.
Just my 2p worth.