The reason why Sasori would be the best Kazekage ever, is because he is stronger than any previous Kazekage. ''Twenty years before his introduction in the series, he left Sunagakure at age fifteen, after which he secretly kidnapped and killed the Third Kazekage (although his involvement in the Third's disappearance would not be discovered until around the time of his death)'' Third Kazekage was known as the strongest person ever to come from the Sand Village.
After the Third Shinobi War, he became known as the Sasori of The Red Sand. I am not afraid to say that if not for Sasori, the Sunagakure would've lost the war.
It is said that he is one of the greatest artists that the ninja world ever had.
I don't know about how good he is at paperwork and economy, but I'm sure he would manage to make the Land of Wind a peaceful country. His Red Secret Technique: Performance of 100 puppets had brought down an entire country, so if actually 4th Kazekage was Sasori, during the invasion of Konoha together with Otogakure, this technique would've make sure that the surprise invasion would've work.
I also think that Sasori would've beat Orochimaru+Kabuto on the bridge, med difficulty.
As for his battle vs Chiyo and Sakura, we all know that he died by his own will, purposely not dodging her last attack.
After the Third Shinobi War, he became known as the Sasori of The Red Sand. I am not afraid to say that if not for Sasori, the Sunagakure would've lost the war.
It is said that he is one of the greatest artists that the ninja world ever had.
I don't know about how good he is at paperwork and economy, but I'm sure he would manage to make the Land of Wind a peaceful country. His Red Secret Technique: Performance of 100 puppets had brought down an entire country, so if actually 4th Kazekage was Sasori, during the invasion of Konoha together with Otogakure, this technique would've make sure that the surprise invasion would've work.
I also think that Sasori would've beat Orochimaru+Kabuto on the bridge, med difficulty.
As for his battle vs Chiyo and Sakura, we all know that he died by his own will, purposely not dodging her last attack.