So Naruto is the one from the Last. I including his "the Last" self because i actually wanted to do BSM Naruto vs Akatsuki, and that was the strongest "BSM" Naruto ever used since as Hokage he uses SPSM. He can obviously use any feat he displayed in BSM in the movie and the war, including thousands of shadow clones, Kurama shadow clones ETC.
The akatsuki is the original Akatsuki that we are all familiar with: Pain (6 paths of pain), Itachi MS (as he was during his fight with Sasuke), Kisame (as he was during part 2), Deidara, Kakuzu, Sasori, Konan, Hidan and Obito (he only has one MS and no rinnegan).
They fight in an opened field, meaning that Konan doesn't have her paper bomb Canion prepared.
They know about each other from their previous encounters. That means that i believe only Naruto and Sasori and Naruto and Konan don't know about each other's abilities since they never fought.