sasori>>>>MInato
deal w/ that fanboys
yup, its just you agains the world. People don't even have to deal with what you said cuz its too ridiculous. And it is not a matter of being a fan of Minato, or against Sasori. . . it is a matter of being realistic. I believe that it is you who is just against Minato.
Concerning the issue: i believe that we all respect sasori for his abilities. He is indeed a great ninja. I would also believe that the worst match-up for him would be skilled medical ninja like tsunade for instance. Tsunade's medical jutsu, healing skills and all those other techniques that she used against madara would definitely gain her immunite against Sasori's poison. Some people may say that there is no cure against his poison, you have to prepare it. Well i guess that tsunade and just two or more medical ninja might have the right potential to gain immunity from those kind of affliction moves.
Considering the strong medical ninja as his worst opponents (this is my opinion ofc) I believe that sasori would not be able to defeat the sannin, any of the ninja holding the kage title - including past kage's that we are familiar with (i have my doubts about mei), naruto, sasuke, itachi, Bee, orochimaru, kabuto, nagato, madara, and a couple more.
I believe that he would be able to defeat chiyo 1 on 1, deidara, maybe kakuzu, kisame, hidan since his puppet body will give him a lot of time to analyse the enemy. (don't get me wrong, I am just comparing him against the top ninja, it doesn't mean that he is weak.)
i wonder what would happen if put against kakashi or gai