You forgot Nagato. He was able to take on an entire village single-handed. Technically, he won, too, because he achieved his mission of locating Naruto.
There is so much speculation about what kinds of powers we will see from Sakura and Sasuke. I doubt it will be on the level of Naruto's most recent exploits. Sasuke hasn't really improved since killing Itachi, and Sakura hasn't really improved since the time skip. No doubt that they have both been holding out, since they really haven't fought anybody in the war, yet, but Naruto had surpassed everybody else (except maybe the Kage and Madara) back when he took on Nagato.
The last time Sakura fought was during the Pain Invasion Arc, and she didn't do anything except take down a summoned creature and call out for Naruto. Konohamaru did more than that by taking down one of the Paths. Maybe she didn't have enough chakra built up during the invasion to use her new technique, but its hard to believe that she would have improved so quickly without doing anything. I really see Sakura's new technique as being more of a one off ability with an extremely long recharge rate. Either that, or it will have a huge physical cost. In other words, I would compare it to opening the Eight Inner Gates, taking the Red Pill, or using Kotoamatsukami; it apparently takes years to build up the necessary energy and will likely leave Sakura in pretty bad shape when its completed.
The last time Sasuke really fought was against Danzo. He just tanked around and spammed his Sharingan techniques. We haven't seen him actually use his EMS abilities, though. His abilities were hinted at when he was using Amatarasu in conjunction with Susanoo in Obito's base, but he seemed pretty pathetic when he fought Kabuto. His Susanoo was significantly weaker than it was before, and didn't even compare to Itachi or Madara's. He only used the basic Amatarasu, and he could only use the basic Sharingan genjutsu. I'm sure Kishi has something big planned for Sasuke, though.
I think it's funny that Kishi planned out for Naruto to essentially be completely spent before Sakura and Sasuke even showed up. Naruto has been extremely busy since fighting Pain, whereas, by comparison, Sakura and Sasuke have been resting. They have gone a couple days without sleep, but Naruto has also had mental battles with his dark self and Kurama, trained to use his new abilities (the TBB actually burned him every time he tried using it), fought on every battlefield, fought Itachi and Nagato, fought the other Jinchuriki, and then held his own against Obito, Madara, and the Juubi, all while protecting everybody (except Neji). Sakura punched a Zetsu clone and supervised the Medical Company, and Sasuke watch his brother genjutsu the crap out of Kabuto and then went for a walk with his reunited team and Orochimaru.
