I rather go for they have an even match. with both guys getting the better of each other at some point. then they both take things up a notch. and still the same result only they've used up all their chakra and are seriously injured. possibly both on the brink of death. the kabuto and strong jounins from the leaf come. kabuto takes sasuke and leaf takes back naruto. after their recovery. sasuke is training with Oro. while jiraiya convinces tsunade to let him take naruto for his protection against the akatsuki and also to continue his training. and so from there we can start a new arc.