Either way, I think powerlifting should have height classes instead of weight classes. Taller lifters have to do more work for the same result and also end up in a higher, tougher weight class just by weighing more due to their height. Lifting something big at a low weight usually does not mean much because it's a near midget doing it but proportionally they have the same muscular development as a person of average or tall height.
People of similar height tend to have similar bone structure resulting in some amount of convergence in their muscular development when pushed.
Most of the hotter female lifters seem to be a fair bit below average male height which makes it harder to compare their numbers to those of male lifters but ultimately favours the male lifters. The strongest women, at least in terms of upper body strength, feature mostly in shot put as opposed to powerlifting where just about all exhibit great height and big benches at the same time. I would like to know how much the 6'5-6'6 Valerie Vili of NZ (Beijing shot put gold medalist) lifts.