Team Naruto would win, even though it wouldn't be so easy as you all say it would be.. Naruto is nowhere close to soloing 5 Great Kages.. First one from that plenty of Kekke genkais, Forbidden and Secret techniques, they can make out insane combos, tactics, attacks, also the one who thinks in Team Naruto is Kakashi since Bee, Naruto and Gai are idiots when it comes to brain. I would like to point that Kurama Mode is limited, also 8 gates would kill Gai, Tsunade just would get hit by it and use Rapid regeneration... Blah blah, Yes Naruto team wins but it's from Mid to - High dificulty, and nowhere near Naruto solos lol, that's stupid.