It does seem kind of childish, but consider this line:
"Gigabyte claims that when Asus compared its EPU motherboards to Gigabyte DES equivalents..."
Gigabyte seems to be defending themselves, more than making a baseless attack against Asus.
I've owned two Asus boards, and while I think it might be a bit strong to outright accuse them of lying, I'm inclined to agree with Gigabyte. I don't find Asus to exactly be the most forthcoming, that's for sure.
On one of my boards, when the processor hit a whopping 40C, as if that's hard or uncommon, it would massively throttle back the voltage, literally making it useless for anything but the internet. This function could not be adjusted or disabled, nor was it mentioned ANYWHERE. I didn't even find out what was going on until I did a LOT of research into it. Now why in the world would someone build something like that into a motherboard you go out and buy yourself to begin with? I can't say I've even encountered a cheapo pre-manufactured PC that did something like that.
The other I have is an Asus P5K SE. Now obviously, I'm not talking super high end stuff here, but they advertise on their site that it supports 1600 FSB, which I would take to suggest that it can, without a doubt, run stable at that speed. Trouble is, it won't even post at about 1500 mHz, no matter how insane I go with dumbing everything else down just to see if it will work. And it gets better. I thought maybe it was a BIOS thing, so I recently updated, and then, it couldn't even post beyond 1333 with several newer versions I tried, and I had to roll back. Wow, what an improvement!
It's lacking some settings in the BIOS that I figure would allow it to be able to handle 1600 mHz, but they didn't add them in new updates. It's even more crippled after they started advertising that it could do better, and made new BIOS...mmmmkay.
Maybe there are only certain revisions or something that can really handle it, but they don't stipulate that at all, and other boards I could have gotten for cheaper would have been just fine.
I gather that some of their higher end stuff is pretty good, but when you get down to it, that's not my bag, or most peoples', for that matter. From all I've ever been able to tell, they really screw you on that end.