Depends on how they match up, as in who fights who. Tobirama vs Orochimaru would be close as both use Edo Tensei. I would give this to Orochimaru as he is virtually immortal, and has a lot of forbidden jutsu which hasnt been revealed to us so far. That said, we shouldnt underestimate Tobirama, as he has been, after all, a Hokage (although the second worst after Tsunade imo).
Minato vs Tobi is also a close encounter, as Minato held his own against Tobi and Kurama. Interesting to see if Tobi's warp is faster than Minato's FTG. If not, Minato will just seal him up. People who say Minato is overrated are pretty stupid or more likely ignorant. Enemy generals arent stupid enough to issue orders to their troops to flee the battlefield is they see Minato if he wasnt that good.
Kakashi can easily take on Zetsu and Hidan, as both are the stupidest villains and Kakashi is shown to be one of the most intelligent fighters. If they have prior knowledge on each other, even easier and Kakashi can move on and help anyone in need (most likely Tobirama)
Hiruzen is known as the "God of Shinobi", he can pretty much handle Sasori, Kakuzu and Konan and possibly Kisame. This battle easily goes to Hiruzen as he was able to take on both the first and second Hokage, who as brothers, must have insane coordination and both are ridiculously powerful, especially Hashirama.
If they all have prior knowledge on each other Naruto > Nagato. It'll be a quicker battle than the one we read/saw, and Naruto can go on and help others.
This leaves Jiraiya vs Itachi and Deidara. Itachi himself said the max he can do is draw against Jiraiya. Add Deidara and I see an Akatsuki victory. Itachi has been soooo overpowered by Kishi, its unfair. All he has to do is that genjutsu and his impenetrable Susanoo with the Sword of Totsuka. Due to Itachi's and Orochimaru's superiority in comparison to their opponents, I give this to Akatsuki.
As some of the good guys will finish their fights and quickly go to help the others, I would say Team 1 as Hiruzen, Jiraiya and Naruto are sooooo powerful.
(look)
