In my many years of computer building, I have found that ASUS motherboards are the best for me. They perform very well, their cost is reasonable, and their manuals cannot be beat. I've been using ASUS motherboards ever since the Pentium 100Mhz days & refuse to build a computer with anything else. It is true that I haven't used anything other than ASUS when it comes to building systems. But with dependable, great performing motherboards such as theirs, why would I try anything else?
Just FYI, I'm running an ASUS P4C800-E Deluxe motherboard in my current system & have had no problems with it (except for my current DVD drive issue, but that is not caused by my motherboard). And no, I do not work for ASUS nor am I an authorized distributor for ASUS (not yet at least