This will be fun.
Now then
First point:the mere SM clone beat an Edo third raikage who is "above" the 4th raikage part was way off! Both father and son are completely different opponents=different style of fight=different ways to land blows. The son's aka the 4th raikage was a little not easy to deal(proof naruto add trouble and sasuke too)
Also,sasuke's powers are different And you can imagine on what level? Good, moving on
^ point of this, it means that the significant battle comparison proofs nothing on your post.
Second point:sasuke was fighting danzuo alone, help how exactly? If you mean karin then wrong, she was trying to help by figuring Out danzou's trick aka the izanagi but however, sasuke already knew of his trick. Why do you think he used that itachi gentjutsu on the fight?yes correct, to see if danzou may fall under it for just a bit, every attack he made was just to completely shot down every eye on danzou's arm. Tobi did nothing, is danzou's foult for not taking sasuke seriusly.
3third point/your mistake:don't use black zetsu on this, it proofs nothing.
Mistake #4/point: SM naruto at that time had a limit of usage, ms sasuke is stronger no matter what argument you bring. Amateratsu+susano is something that, "that" time SM naruto wouln't take, shadow clones? Amateratsu > clones, rasengans? Susano, the only problem would be rasen shuriken? Not a problem, sasuke can either use a summoning to avoid it.
Like i said SM naruto has a limit. Why do you think the kyuubi chakra was need it for a power up? Lets make it simple.
Hebi sasuke > the start of shippuden naruto=naruto had to train to catch up in reality he gained SM who SM > hebi, then later ms > SM they grow together, one passes the other but then the other one catches up, KCM NARUTO > ms=you think? Duh
You can desagree with my post or counter. Is the basics after all