Not sure if it is the best, but I am very happy with the Epox 8K3A+. It has been rock solid and you can really push the front side bus. It has that 1/5 divider so once you get past 168 (I think, but in that area) everything runs back at 33mhz except for the memory which flies! I have my XP1800 unlocked and running at 9.5X170 so 1615MHZ. Not the greatest overclock but the FSB is SCREAMING!!!!!