To end the feud of Kabuto and use Nagato as an example.

[SuperFlyzzED]

Kabuto dodged the arrow easily at close-mid range. Danzo was long range.
As for amaterasu, I do believe it was a genjutsu and Danzo and the "fake" Itachi was standing within 2 feet of each other.

What the hell are you going on about an illusion? Sasuke hit the real Danzo with Amaterasu. He used Izanagi to avoid death that's how he escaped alive.