Your most of the candidates are total fail. :flaw:
1) Minato-Already a hot debate on this forum, and always proved that itachi wins. Itachi only because of genjutsu and MS techniques.
2) Hashirama Senju-Yes, probably, and since we didn't know his real power, i will say he can as he defeated madara.
3) Madara-Yes, because of his EMS and rinnegan.
4) Hiruzen Sarutobi-Probably yes, because he was the strongest hokage and has the most experience.
5) Sasuke (EMS-Susano-Amaterasu)-No, he is far away from itachi's level and intelligence and power.
6) Tobi (Rinnegan - Six Paths)-Yes, due to rinnegan and sharingan.
7) Kisame-Nooooooo, why the heck you put such a weak candidate?:flaw: Kisame himself stated that itachi is more powerful than him.
8) Muu-Probably not, i didn't see how he is gonna fight MS techniques and genjutsu.
9) Naruto (KM and SM)-Totally NOT. fool people didn't understand this. Naruto is too dumb to counter itachi's regular genjutsu, and got totally raped. He is gonna defeat itachi? O.O
10) Third Raikage-No, he is just a outraged, hot headed and powerful. No counter to itachi's intelligence and genjutsu.
11) Tobirama Senju-Probably yes, or no, we didn't know his real power.
12) Yes, oh yes, the one and only, the infamous rival..NAGATO-:flaw::flaw::flaw: And this is your biggest fail. This is also proved many times, nagato cannot defeat itachi. Ok, i agree that he cannot be defeated quickly as he did recently. but he cannot defeat itachi's intelligence, and other power.