Actually I take that back. Both escaped with Plot no Jutsu tbh. Ay would of killed Sasuke in the 1v1 but Gaara saved him, Mei would of killed him but she had to lower her mist content because of the other Kage, Tobi saved him from Ohnoki, and he ran from Gaara to avoid being soloed. But then again, Talk no Jutsu saved Naruto from Nagato and Konan since he had little to no chakra left, and the Kyuubi saved him from the Deva, and Minato saved him from the Kyuubi, and Hinata saved him as well, and he had people constantly giving him intel on the Paths. Both failed hard in my opinion.
Naruto had more of a accomplishment, while he had help he eventually brought down the Pains, Sasuke fought the five Kage in small groups (one or two at a time) and even then he didn't really do much against them, he mostly played defense and tried to get around them.
He only killed one of them in a one on one fight.
Naruto had to fight five of the Pains at once.
Edit: Actually Sasuke didn't even fight Oonoki or Mei, he just dodged and nearly got hit by their attacks, he didn't counter attack at all.
This about sums up my opinion.Sasuke, the Kyuubi did most of the work. Pain was about to merk Naruto before he kicked in.