I don't know that either is the better board. I chose the Abit because everything is controlled in the BIOS. The Asus has jumpers, but there might be a jumper-free mode, I don't know. Also, there's a wealth of information on the KT7 at <A HREF="http://go.to/kt7faq" target="_new">http://go.to/kt7faq</A>.
When I first got the board, for some reason, every time my computer accessed my hard drive on the standard IDE connector or the RAID controller, it was really slow and my mouse movement was jerky, etc. After spending several days changing from WinME to Win98SE...reinstalling, changing cables, hard drives, loading various drivers..., the problem went away! And I don't know what I did to fix it. I guess I was pretty burnt out by that time.
So far it seems that you can change the bridges on all the Durons and Thunderbirds. This site and many others have articles on how to make the change.
Mike