OK completely random but after I remembered how in Japan blood types are considered important and in media the blood types are used to determine personalities and even pairings. (It's why you find bloodtypes mentioned in Charactor Bio's in Japanese Games) So decided to see what Naruto's charactors would reveal, (I haven't checked the personalities just the partner with certain blood types.
http://www.japantoda...apanese-culture
Naruto & Ino: Type B
Sasuke & Karin: Type AB
Sakura: Type O
Hinata: Type A.
Type A: Hinata
Partner who is type B – Type A person envies type B’s happy-go-lucky personality. However, type A person worries about type B person’s personality.
Pretty much spot on there.
Type B (Naruto)
Partner who is type A – Type A person is always willing to help type B person; however, they get tired of each other easily. Type A often complains to type B.
Partner who is type AB – They attract each other and they may quickly start a relationship. They love each other very much.
Partner who is type O – They can understand each other easily. Type O person covers for type B person’s bad points. They are a great match for friendship.
That actually makes sense, I specially agree with Type O, (sakura.
Type AB (Sasuke)
Partner who is type B – They are a good match and connect with each other easily.
Partner who is type AB – Their relationship is always proceeding along parallel lines. They cannot open their minds to each other. It is best not to be too close to each other, nor be too far apart.
Partner who is type O – They can succeed in business and at various activities together. They can produce new things together easily.
Type B makes sense, but Type O (Sakura) doesn't match up.
Type O (Sakura)
Partner who is type B – They can talk freely and openly and have a comfortable relationship. However, type O person gets confused by type B person’s moody personality sometimes.
Partner who is type AB – Their thoughts are a match. However, if they are in the same “arena,” they compete with each other strongly.
Again the relationship with B seems to be similar to her relationship with Naruto, but again her relationship with Sasuke doesn't match up at all.
Thought it was an interesting read, I can't help but wonder if Blood types were used to determine the personalities and their relationships with each other, the only one I can't see is AB with O, the others seem to match, and just as an extra Shikamaru is AB and Temari is O, and unlike Sasuke and Sakura, the blood type match makes sense...to me atleast.