<< ASUS!
Sure they make great motherboards, but why would I want to spend the extra money for rude customer service?
They charge on average like $10-$20 more for the same things ABIT, EPoX, Gigabyte, and Soyo offers, and a hell of a lot more than MSI and ECS. Unless they have something others don't, I would NEVER buy ASUS. >>
What they have is reliability, a proven track record, and very few problems. You pay for that, and as the biggest manufacturer for a long time, they know you will. Anyone using a ECS board for business should have their head examined.