Well lets restrict a lot of crap and see who is the strongest ninja, only own power 
-No Bjuu
-No Dojutsu
-No Summonings
-No Senjutsu or Sage Mode (No Cursed Seals)
-No Edo ninja or Edo Tensei users
-No genetic alterations (Kabuto, I'm looking at you)
With all these restrictions who would come out on top. I think it will still be Hashirama both possibly Guy or Lee :x3:
-No Bjuu
-No Dojutsu
-No Summonings
-No Senjutsu or Sage Mode (No Cursed Seals)
-No Edo ninja or Edo Tensei users
-No genetic alterations (Kabuto, I'm looking at you)
With all these restrictions who would come out on top. I think it will still be Hashirama both possibly Guy or Lee :x3: