You do know I am Steve Austin, right? Also yes, Danny would destroy Kenshiro.
Besides the hilarious speed advantage, Danny is strong enough to break out of the Crimson Bands of Cyttorak and rupture the fabric of reality as early on as Iron Fist v1 #7.
He can give substance to his spirit, and beat the snot out of people as a ghost.
He was able to murder Zhu-Rong the God of Fire and the Guardian of Universal Order in a single blow.
He was able to heal Matt Murdock's soul with his chi, and give him the strength to fight back against a demon powerful enough to defeat Ghost Rider.
Before even learning the hypnotic fist style he accidently mesmerized the Hulk with his chi, and transformed back into Bruce Banner.
Danny could defeat Davos without his chi when the latter had his chi on top of the accumlated memories of every dead Iron Fist from the Anomaly Gem.
He could absorb Radion's radiation, and that guy was a walking hydrogen bomb. He could absorb Master Khan's sorcery.
He is quite literally nuke proof, and didn't get a scratch from a train loaded with enough explosives to make Hiroshima look like a sparkler. That's not even a paraphrase by the way. The narration literally referenced Hiroshima.
His Iron Fist was equated to a Hydrogen Bomb even before his many upgrades.
Amazing showing. Ignore Kris, that's his norm to ignore things like that to irritate whoever he is debating against. Wonder why no one else posted this showing for Danny.
Most likely because people hate to read. The see Danny dodge bullets, and they don't see that the narration is noting the time-frame.
So, they focus on that instead.
A lot of people who brought up this showing in the past didn't realize microsecond was being noted.
It's the same reason why people don't realize that when Danny survived punching a train filled with explosives. That said train was supposed to wipe K'un-Lun off the map, and the explosion was noted to make Hiroshima look like a sparkler.