HotHardware has posted a comparsion between Abit´s SE6 and BX133-RAID.
Here a clip:

At first glance there is a lot to appreciate about both of these boards. The BX133 with its integrated High Point ATA100 RAID Controller, Abit Patented "Soft Menu III" CPU adjustments in the BIOS and Health Monitoring, is a complete package forged with the performance of the tried and true i440BX chipset. On the other hand, the SE6 sports Intel´s newest PC133 compatible chipset, the i815. In addition, you get 6 PCI slots, an integrated ATA100 EIDE Controller, on board sound and video and of course AGP4X support for the AGP slot.

Read more