Like I said, Ichigo didn't physically attack the mountains like Naruto has to in order to get those feats, the mere shockwave of him Parrying an attack was enough to destroy entire mountains.
It was Explained in very full detail by Kurama that He could not be over powered by any Bijuus with a lower number of tails than him. Naruto is not a Multi Mountain Buster until he shows he can Bust Multiple Moutains, I'm sick of people always misreading the 5 deflected Bijuu Bomb feat as if it was Naruto who created and blasted those off. You do know what faster than light is right? Because Tobi can't avoid explosions how the hell is he faster than light, You are overestimating Tobi vastly. LOL I have seen Naruto vs Tobi and Tobi is nowhere near faster than light. He doesn't have the speed nor power to Permanently put down Dangai Ichigo when he's just in bankai let alone said: Doesn't matter if it a million Naruto clones, he can't win. He was able to shrug off a virtual Nuke from Aizen as if i was nothing and came away with light burns which healed almost Immediately. He doesn't even need to fight his clones could fight for him just like they are, against MADARA AND TOBI.
Naruto's use of Shadow clones will be his key to victory. He doesn't even need to fight his clones could fight for him just like they are, against MADARA AND said: So Ichigo destroying mountains, is not impressive.
Naruto has been a Multi Mountain Buster, ever since the Kakuzu Arc. You obviously have not seen Naruto vs Raikage, or Naruto vs Tobi, where A CLONE of Naruto was fast enough to keep up with Tobi, who is FASTER THAN LIGHT !!! Raikage is faster than sound as well. Naruto in his most powerful form doesn't have anywhere near good enough feats to be put on par with ichigo. The shockwave.he doesn't have to physically touch the Mountain in order for it to blow up. The shockwave from Ichigo swinging his sword alone was obliterating mountains. and in Ichigo's most powerful form he tanked a Kido so powerful it distorted space and time in the area it affected. Naruto hasn't been shown to be anywhere that fast ever.
Lol No he doesn't Ichigo in just Bankai form had reactions of at least 500x the speed of sound. Naruto's, he could make 100 Biju Bombs with his clones, also he has a speed advantage.