If I got an upgrade that had hit/haste on it and upon equipping it I was over the hit cap I would reforge hit into crit. If I got a crit/haste upgrade and was still above hit after equipping it I wouldn't reforge crit into hit. Therefore crit > hit above hit cap.
If you are over hit cap and have a piece of gear that has hit and haste on it and you've already reforged every other piece of gear you have that has hit on it into haste are you going to leave the hit on the hit/haste piece alone or are you gonna reforge it into crit? If you are going to reforge it into crit then crit is better than hit. I agree that both hit and crit should be reforged into haste but if that isn't an option crit is better than hit above hit cap.