@Lady_Liberty: Superboy is only half-kryptonian and has gotten his rear handed to him on a fair number of occations...like Supergirl breaking his jaw rather easilly.
This says nothing . Supergirl is strong as hell she also Ko strong Gundy who was taking out the JSA. Not only that she is fast as hell plus stregth Even hulk would been KO by Supergirl. NOw dont let this low end feat take down superboy . What happen when he fought doomsday he took a pounding and still was fighting back .Even when doomsday power overwhelmed him he was still putting out .