Pick your favorites!

[Chie]

Naruto and Sasuke
Kakashi and Obito - Neither. I liked the Tobi persona though, if that counts for anything.
Jiraiya and Orochimaru
Hiruzen and Danzo
Hashirama and Madara
Ashura and Indra

 

[Xlad]

Naruto and Sasuke
Kakashi and Obito
Jiraiya and Orochimaru
Hiruzen and Danzo
Hashirama and Madara
Ashura and Indra

Bold are my favorites.
Jiraiya and Orochimaru are the hardest ones. I chose only by a slight margin.

 

[Angelic.]

the indras are more complicated characters but i dont care for them...black zetsu xD

obito and kakashi are unique.

 

[Mahesvara]

Naruto
Kakashi
Jiriaya
Hiruzen
Madara

 

[TheAncientCenturion]

Naruto and Sasuke
Kakashi and Obito
Jiraiya and Orochimaru
Hiruzen and Danzo
Hashirama and Madara
Ashura and Indra


The non-bolded I am neutral on.