1) Tobi w/ Paths
2) Kabuto w/ Edo tensei arsenal
3) Rinnegan Madara
4) Naruto
5) Nagato
6+7) Minato/Hiruzen
8) Bee
9) Itachi
10) Hashirama
that's mine
Even though I disagree with the placement of Naruto and Itachi I pretty much agree with this list.
I'm not saying Naruto should be 9 and Itachi should be 4 but Itachi is better than Bee, and in my opinion Bee is better right now than Naruto.
I never do number instead I do tiers. Because some people may have an advantage over a certain person above/below them but that person might be able to beat many others that the first person cannot. You get me? I know I didn't say that well but whatevs.
Anyway here goes.
Tier 1- (super ninjas that are unbeatable except by armies or entire groups of haxxed characters, this is basically a subtier because it only includes these people but they both have caveats along with it)
Tobi - with his paths
Kabuto - IWR army
Tier 2 - (insanely strong individuals that can be beaten only in ridiculous situations or by luck)
Nagato - rinnegan, Uzumaki chakra levels.
Rinnegan Madara - without Hashirama's powers as he was dead after getting them.
Itachi - best genjutsu user, legendary weapons.
Minato - w/ his space time and sealing he is pretty tough to beat and I can't really see anyone other than the people in these top two tiers beating him.
Tier 3 - (those with the potential to be some of the strongest characters ever, or those people who are right below the best)
Killer Bee - perfect jinchurikki, best swordsman so far, all around awesome.
Naruto - has got the power but still is stupid in battle and doesn't have the variety in his arsenal that he needs.
Jiraiya - sealing, sage mode, best summons (other than the 9-tails and gedo mazo), wide variety of jutsus.
Onoki - dust release, changing weight of things, actual flight, mastery of 3 elements.
Sasuke - EMS, lightning + fire jutsus, and craziness. I guess that is all he needs to get put here.
Muu - same as Onoki except I think Onoki is better. Onoki had him at a stalemate and Onoki is super old and has a bad back, while Muu was invincible.
**Note about tier 3** Pretty much all of the past Hokages would be in this tier (or maybe one up) by hype but since hype is all we have I am only ranking people we have actually seen fight.
Tier 4 - - (kages, Akatsuki, other kage level ninjas)
Oro
A
Gaara
Tsunade
Mei
Gaara's dad
Kisame
Sasori
Deidara (i'm iffy about this one)
3rd raikage
2nd mizukage
Tier 5 (people right under kage level)
Kakashi
Guy
Darui
Kakuzu
Hidan
Kimmimaro
Konan (why do all the names start with K?)
+ more ninjas, there are alot of people in Tiers 4 & 5 so I don't feel like naming them all.
You might switch some people around but on the whole I think the people in tier 1 can beat all the people in tier 2, and tier 2 people beat tier 3 and so on.
I think the tier system is best because some people are just too close to call, like Itachi and Nagato.