Has to be WW vs Cheetah. Cheetah is one of the few that can occasionally get the upper hand on the powerful Amazon.
When I was a kid, I read a comic featuring the Huntress. In it, she fought a villainess that kicked the Huntress's ass. After the fight, her costume was in tatters and she was all bloodied up. I can't remember the villainess though, but it was an excellent fight.