Board Thread:Theories and Speculation/@comment-26940724-20160318215832/@comment-9782468-20160330015311

Kakashi overall in my opinion. Battle intelligence, people intelligence (interpersonal skills), moral intelligence (able to use horrible experiences to make himself better rather than worse, unlike Uchihas). He's overall the most intelligent, I think. Leadership abilities are on point too.

Tobirama is right up there with Kakashi, the only reason I put him a little under is because his interpersonal skills are probably less, considering how crass he was towards Uchiha.

Shikamaru with strategizing over time.

Itachi, who could see the big picture better than nearly anyone. He did, however, cause a lot of problems with how he handled Sasuke.

Madara, who pulled the strings from the beginning. He loses just because he's not intelligent enough to see why life was worth living and fighting for rather than just have a big Genjutsu.