Isn't ironic that all the Akatsuki members that would seem the hardest to kill (except for Pein and Itachi) were the first to die?
I'm pretty sure that Chiyo-ba-sama and Naruto were the only two who could have taken Sasori as well as she did with Sakura's help.
Only someone with the Sharingan could have survived Deidara's micro bomb attack. So that only leaves room for Itachi, Sasuke, and Kakashi.
I'm convinced only someone with Shikamaru or Kakashi's brains could take down Hidan.
Naruto has the largest amount of chakra of anyone and he still needed Kakashi, Yamato, Choji, and Ino's help to take down Zetsu.
I could be wrong about all this, but I don't really care.
I'd really like to know just how strong Kisame is and who'll be the one to kill him.