Originally Posted by
DarthEnder
After all, we've had more than enough scenes between Shukaku, Eighttails and Kyuubi to show us that the beasts are fully capable of thinking and communicating through speach.
And when Shukaku takes over Gaara, it's fairly obvious that the Shukaku is a creature with it's own personality and motivation. Shukaku actually speaks when he's in control.
But when Naruto loses control it's just "RAAAAAAAAAAAAAAAAAAAAAAAAAWWWWRRRR!!!!!!"
Even when fighting Pain when the seal supposedly broke completely, it still didn't seem like Kyuubi had gained control. It just seemed like mindless rage. And while Kyuubi is certainly pretty enraged all the time, he's not mindless.
I think if Kyuubi were really in control during Naruto's rampaging, he might have some things to say, much like he had things to say to Sasuke when he entered Naruto's mind.