Well let see at their current levels if its a battle between Madara Uchiha(edo released) vs Current Ninetails chakra Naruto then who would win this one.......Now dont tell me that Naruto is the main character and manga is named after him...he was able to defeat Nagato and so on........I think...
Is Naruto much useless without his Kyubi??.....i mean when ever he fought and won matches it was due to kyubi's chakra(Most Matches)........other than the nine tails he only has 1)Shadow clones 2)Rasengan 3)SAGE MODE :) .........and we havent seen him having his father's abilities(4th hokage...
Lets see who is the strongest character in Naruto Shippuden till date(the one who has the potential to be the strongest considering all possible factors....intelligence,chakra,strength,army..n all possible parameters.........)