I sometimes mix troll post with serious one. However, that argument of Naruto being damaged by swords, thus, being not durable is not as good, unless we say Ei can tank SM TBB + Susano'o arrow, because he tanked a chidori flowed Kusanagi, and Juudara couldn't .
Basically, a strong being with a sword is made to cut people of his general level. And this is like a "manga rule" just like characters receives atomic bombs hits and their clothes are unscathed. I could give you DBZ examples where Frieza tanks Spirit Bomb but is cut by Trunks's sword.
Things like this have happened in the manga, Sasuke's sword cutting Madara in half when Harogromo powered up Yoton Rasenshuriken couldn't, or stabbing SM Naruto, etc, etc, etc.
So, if we go straight (and here was the troll-joke- sarcasm part) featwise, Sasuke's Katana has shown better feats than just cutting mountains, talking about pound per pound.