We all know how their first confrontation turned out with A being stronger and Naruto being faster, but that wasn't really a fight Naruto was just trying to get past A. After entering the battlefield Naruto has demonstrated some brand new jutsu in Kyuubi Mode plus a couple of his old ones.
I'm listing them in the order he has demonstrated them.
Tailed Beast Chakra Arms:
Wind Style: Rasenshuriken:
Super-Mini Bijuu Dama:
Do you guys think as of right now Naruto could beat A in Kyuubi Mode?