Goddamn time out, my beautiful post gone.
I must say I fully expected Archangel to make such an argument but not you, I'm really disappointed. First off all I really don't care about the opinion of team Asuma or Sakura, Yamato and Sai who had their asses handed to them by Sasuke or the opinion of Kakashi who had his ass handed to him by Itachi. Nor Kakuzu, since news of his death got a chuckle out of Kisame. Secondly Naruto's rasengan didn't kill anybody, it destroyed the cells in Kazuku's body, and some of Naruto's too I might add, and Kakashi killed him. I've said this before and I'll say it again Rasengan doesn't kill.
Now it may sound like I'm being an ass but really its not without reason. When I read your post I did a double take and then I had to get up and go do something else, just to let what you posted sink in.
Anyway on to my point, as for the power of Sasuke's technique, 1 2 3
4
As far as damage goes, before, impact, afterward.
Scaring Zetsu witless and forcing Itachi to use his strongest move, priceless.
I really can't believe that you guys actually think that Sasuke, the person Naruto has been struggling to keep up with since the very beginning of the series, the person whose power Madara desires more than the Kyuubi, the person Itachi gave his life for and the person who gives Kishimoto a massive hard-on, doesn't have a technique more powerful than Naruto's played out rasengan. WOW.
-Btw where did this 50% stuff come from? Naruto wasn't able to use the technique properly during training but just like he did with the original rasengan when it came to the real battle he managed to use it. Atleast that is what I got.