He'll lose to tobi, deidora, nagato and itachi.
Kisame, sasori and kakuzu would give him a fight
well the only one i agree with is itachi, i honestly dont think hardly anyone could beat him without him wanting to lose (aka his fight with sasuke) other than that, tobi...remember recently we found that tobi wasnt able to pass through naruto leading me to believe if he kept it close quarters, he, if anyone, has a chance of putting a smackdown on tobi. nagato...he already beat him, no not with his strength but because nagato isnt just an evil guy like all of akatsuki, he had a mission that in his mind was good and naruto appealed to that, nagato came back and pretty much said his confidence in naruto, lastly deidera...to me he is extremely overrated, the one consistant arguement anyone has for him is "oh well he can just fly out of range on his bird". well since naruto is so fast im willing to bet he could catch him, even more so if he learned minatos teleport jutsu and just threw a few kunai at him and teleported up into the air. also few think of this, what would a rasenshuriken do to deidaras bird if it landed? im thinking by screwing with the chakra in it, it would explode probably killing deidara, or if not that then it would short it out and it (deidera with it) would fall to the ground from a mile up as a huge chunk of clay.