But Jiraya and Oro are both really afraid of Tsunade. (True, Oro didn't have arms at the time, but still.) So therefore, Tsunade must own all.
</sarcasm, well, maybe not that sarcastic>

But seriously, this thread is kinda stupid, most of "who'd win this fight?' is situational. Diedara would have been obliterated by Gaara if they were in the open desert or he still didn't care about anyone else.