I can obviously see what's going on in the 3 main battles.
Naruto and company vs Tobi: Tobi has the tailed beast so obviously he needs help, besides the fact that he just acquired the 9 tails full power and does not know how to use it and being young himself doesnt have the experience that someone like Kakashi might have. So, I can see why Bee, Kakashi and Gai would be helping.
But to have Itachi and Sasuke team up against Kabuto, come on. Yea, like I stated before its harder to catch somone rather than to kill them. But you have Sasuke who says that the Uchia are the best shinobi, blah blah blah. Needless to say, you have two Uchia (aka: best shinobi ever) vs Kabuto.
Then you have Madara vs 5 Kages. Yea, Madara is pretty much immortal, but you have the 5 KAGES who cant even slow him down. Like I said before, even without the 1st Hokage's power, Madara would still wreck on them.
Which leads me to say, that the younger generations have failed to surpass the old generations. Madara has the stated multiple times, that the 1st Hokage left a weak generation... Madara states that if he could bring back the 1st, he would so that he could show him how weak the new generations are.
PS- Tsunade is weak. I dont care if she has survived an attack my Madara. So she can regenerate, we have seen this before already, when she fought Oro along with Jiraiya. Obviously we havent seen her jutsu at this level but you would have figured that out. Besides regeneration and having super strengh, thats all, no special ninjutsu of any kind.
