I've got an EPoX 8KTA3 and an ASUS A7V133 and they're both great! There are many more fsb settings in the A7V133 BIOS, so I squeezed a bit more MHz out of it. Also, it'll fit a PEP66; a tight fit, but it'll fit(nice with a Delta38 fan!). The EPoX is totally fine and the relative equal in every way, stability and memory-bandwidthwise. The only reason to get the ASUS over the EPoX, IMHO, is if you need RAID. It's a standard feature on this board, and a nice one at that, but you pay for it! The ASUS A7V133 costs $35 more than the EPoX 8KTA3. For RAID, an extra 45MHz cpu speed, and the option to mount the PEP66 you have laying around from your P3 upgrade(you know who you are!), this is not too much money. In fact, if you require all three features, this is pretty cheap(if you factor in the cost of an FOP hsf, etc.). But if you just want to have the 133fsb support on a rock-solid board, then why pay the $35 premium?
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PS. I ran my A7V133 stable at 160MHz fsb today! Yippeee!