Originally Posted by Smartpart
So then one BIOS will not be better or easier to OC with than another?
Yes that can be the case but not in the context of your original post.
My current board shipped with bios 0403, this was updated to 0703 to increase compatability with certain ram brands (bug fix), this in turn was updated to 0903 which added options to the bios (increased functionality), this in turn was updated to 1002 to enable increased compatability with certain 1600MHz ram (bug fix again)
So as you see you are sort of correct, it is just the examples you originally posted are not.