I've been looking at getting the third eye for a while....reviewers have been very happy with it, and, more importantly, there are more options in the bios. When I say this, yes, there are more OCing options, but there are also a lot of parameters that you can set so that if X happens, your computer shuts down, hopefully saving the computer. This is, obviously, a big deal if you leave your computer on for extended periods of time.
The Asus board, on the other hand, does have a bunch of neat features, like the ability to play music without having to get into the OS, which is cool, but just seems gimicky to me.
i just got the abit and its giving me nothing but problems. the overclocking features are almost too much. they get in the way of what it is supposed to do by trying to make it too easy. and on top of that it wont even remain stable at stock settings! i have to change many different settings to get any kind of stability.
I'd say MSI neo 2 boards. I have an A8V r 2.0 deluxe. Its one of the best and smoothest running mobo's i've ever used(have used Abit, Asus, MSI and gigabyte). But its haveing problems with the winchester cores. I guess its fairly common on a certain stepping of the winnie cores, but the AGP/PCI lock causes the system to not boot at all. I have to clear the cmos and then it says ocing failed. ITs not the mem, cpu, voltage etc.. as i have tested each individually for at least 10 hours on Prim 95, super pi etc.. If asus resolves this issue, then i'd reccomend it, but currently i'd say go with msi for best ocing as nforce3's are much better ocers.