Okay, so after thinking it through I can definitely see Kakashi winning here.
Kakashi would likely figure out how Izanagi works.
considering he was able to deduce Tobi's Kamui after seeing it only twice.
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And Sharingan supposedly sees chakra. So he can definitely figure out Izanagi based on the chakra changes it creates in the body
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And I know Danzo can take him with a blindside attack after using Izanagi,
but it's not IC at all for him to do so. given he always talks and reveals himself
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And Kakashi is pretty fast in reactions and speed too. take a look
intercepting Sasuke's slash
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outspeeding Tobi and having him praise his speed
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and keeping up with gated gai (albeit briefly)
So he should very likely be able to keep up with Danzo and avoid his hits.
Now for Baku and his Futons.
Kakashi can simply put up Doryuheki, and go underground to avoid the effects of Futon.
Then come back up and bisect Baku with Raiden considering it sliced through V2 cloaks shit diff.
it cuts Baku in half with ease.
Not to mention Kakashi was fighting for a entire day against the 7 swordsmen and then went to assist naruto in
the war. And the only chakra boost he got was a mere Kyuubi cloak that was spread out over 1000s of shinobi.
Not seeing how Kakashi loses here.
however I will be happy to change my mind if the above points are countered