I think naruto and bee would win win a high difficulti.
My reasons:
1) They both have control over a tailed beast.
2)Naruto's biju dama took out 5 others.
3)Current naruto is now faster than the raikage ( If you read the naruto and bee vs raikage manga you would know...)
4)Naruto delt with 5 Tailed beast all alone so 5 kage wouldnt be much different.
Reasons for some people thinking 5 kages would win:
1) To start off its 5v2 ( which gives the high-mid difficulty)
2) Raikage is pretty much inpenatrable ( If you read/ watched sasuke vs raikage.......But dont get me wrong saying he cant get hurt........)
3) Oonoki's dust style departiclization jutsu could be a problem ( the one he used on sasuke which tobi saved him from )
4) Tsunade can regenerate herself using a jutsu ( forgot its name )
5) Mizukage's mist style which zetsu's clones saved sasuke from.
6)
Garaa's sand wont be much of a problem........
- He lost the shukaku
- Naruto alone has kicked his a$$ :flaw: ( in shippuden movie 3 and the original series ) without the nine tails ( think what he could do to him with kurama's full powers ):scorps:
Thats it for my post......Feel free to comment.........