I guess here, it depends on what "kill" counts as,
1. Naruto: 2 (Kakuzu and Pein)
2. Sasuke: 2 (Deidra and Itachi)
3. Tobi : 1 (Konan)
4. Chyo and Sakura : 1 (Sasori)
5. Shikamaru: 1 (Hidan)
6. Gai : 1 (Kisame)
The problem is most of them are not direct kills, except for Konan and Hidan. In case of Naruto, both kakuzu and pein were tired of fighting others, before Naruto engaged them in battle, but he did finish them off (although technically Naruto killed six paths and not Nagato.
Sasuke fought both Deidra and Itachi, but neither died by his hands. Deidra exploded on his own and Itachi purposefully died to give sasuke the mangeyeku.
Gai just defeated Kisame, where he could fight no longer, but he took his own life.
So the question is who effectively neutralized more akatsuki?
1. Naruto: 2 (Kakuzu and Pein)
2. Sasuke: 2 (Deidra and Itachi)
3. Tobi : 1 (Konan)
4. Chyo and Sakura : 1 (Sasori)
5. Shikamaru: 1 (Hidan)
6. Gai : 1 (Kisame)
The problem is most of them are not direct kills, except for Konan and Hidan. In case of Naruto, both kakuzu and pein were tired of fighting others, before Naruto engaged them in battle, but he did finish them off (although technically Naruto killed six paths and not Nagato.
Sasuke fought both Deidra and Itachi, but neither died by his hands. Deidra exploded on his own and Itachi purposefully died to give sasuke the mangeyeku.
Gai just defeated Kisame, where he could fight no longer, but he took his own life.
So the question is who effectively neutralized more akatsuki?