Biggest nightmare of the Uchihas?

[fandum]

The main 4 is Itachi,Sasuke,Madara,Obito.The only threat/nightmare is Hashirama.

Sasuke doesn't solo Tobirama yet sorry maybe one day.

 

[fandum]

Nightmare between those choices Danzo I guess he did have Itachi kill them all.

 

[KGB Kakuzu]

Considering unlike the others, only Danzo sought and acted to destroy the clan....Danzo

 

[KingHashirama]

The uchiha themselves... If your talking about the man the uchiha and the senju and others feared.. then its Hashirama.

Otherwise its the uchiha themselves.

Itachi - Killed the Uchiha

Obito - helped kill the uchiha

Madara - attacked the village hence attacking the uchiha.

Sasuke- only good uchiha