I am somewhat down on ODF this week because the irritation of trying to implement it is fresh. OOX pisses me off just as much when working there :-)
Which, at the end of the day, is the point. Both formats have serious flaws. Flaws that reflect their parentage. I don't see either as being far enough along to have been blessed as international standards. However, OOX easily surpasses that bar set by ODF 1.0. We're apply a double standard (pun fully intended).