C'mon Neo, don't go disregarding the strength of those 20 bounty hunters. They were likely some of the very best ninjas in their village. All that really matters is that Tobirama with a group of ninjas that included Danzo and Sarutobi didn't think he would win, therefore him without those guys definitely wouldn't win.
It's kinda like in the beginning of the manga when Sarutobi was holding a meeting of his jounin, and they were interrupted by naruto's scroll stealing nonsense. Most of those guys there have still yet to be seen again much less named, and honestly most looked ridiculously bland, BUT we can assume from them being in that room that they must have some level of skill regardless. Now imagine if Sarutobi (for whatever hypothetical reason) had tried to fight all guys at once. There's no way he would have beat them all right? Just Kakashi, Gai, Kurenai, and Asuma together would be extremely hard to fight, much less the other 20+ people. There's just no way to see, block or counter that many attacks coming from different people and places, unless you got some sort of ultimate defense (Gaara and Sasuke) or ridiculous Space/Time (Minato) jutsu which Sarutobi doesn't. Same thing applies for Tobirama.
Last edited by ask me anything; 02-07-2013 at 12:54 AM.