Rasenshuriken is of course naruto's sure shot way of victory but you forget that the time it takes Naruto to make it Sasuke can kenjutsu and since he's uses chider with it he can paralyze Naruto. As for sage mode, if Jiraiya, who trained for years to get sage mode was only able to accomplish false sage mode with Ma and Pa why would Naruto be any different(Jiraiya has the age and experience). You still haven't proven that you get more chakra from sage mode yet so I can't speak on that. Sasuke has killed 100 men by himself without breaking a sweat or getting blood spilled on him so defeating clones would be a walk in the park especially with chidori nagashi. Also I noted that the wiki said that Kakasi stated Naruto has four times his chakra reserves but is that with or without kyuubi, its hard to tell. Also, if it's base then only jutsu's and skills should be used not sage mode otherwise it just reinforces the fact that Naruto has no base since he has to rely on sage, on ma and pa, and on kurama as well as gamabunta.
Now i think ur brain is completely addled:
1. Jirya failed to master sage mode with ma and pa, but naruto mastered without them. So desnt mastering something with help means he is greater than one who couldnt master the same thing with help? PLUS why did naruto surpass jirya for to suck lolipops or to do better than jirya?
2. Naruto can use improved taijutsu with sage mode so can counter with a kuinai, as he too can channel wind chakra.
3. U think sasuke gona use raiton and naruto gona sit around doing nothing? He has fuuton the weakness of raiton plus ma and pa can use suiton too....
4.U want to say kakashi has chakra 1/4th of kurama?
5. Well sage chakra uses 1/3 of spiritual energy, 1/3 stamina and 1/3 nature enery instead of normal 1/2 spiritual energy and 1/2 stamina, so basic calculation suggests it saves a lot of chakra excluding the fact that sage chakra may help u recover sooner.
6. where does gamabunta comes from?
7. well he can use clones instead ma and pa if u like, but ma and pa are the basic part of sage mode cos one can not be still and moving at the same time...... even kabuto has that snake attached to him.
8. everyone knows rasensuriken is not instant, but naruto can easily just throw a mass of fuuton, see his entrance in kakazu fight.