Quote Originally Posted by February
Naruto does look very similar to Fourth but other than that, has no simliar traits whatsoever. (personality, skills)
I agree that the skills are the same, but imho, those skills have a little variance maybe. Please keep in mind that we have already seen another sealing jutsu by Yamato and these sealing techniques, although rarely shown through the show, are easily used by these sannin or higher lvl ninjas easily. So its okay to assume that the 3rd and 4th developed their own styles of sealing jutsus or have a little bit of difference among them just because.

To eliminate the alternate theory about how Fourth and Kyuubi inside Naruto are locked in combat forever, then whenever we have traveled to Naruto's inner world, why have we only seen Kyuubi caged rather than the 4th as well? If they are busy fighting forever, we should at least see Kyuubi extremely tired or damaged or show signs of tiresome activity
I agree that the 4th is not in Naruto, however I dont see how Kyuubi would ever be tired. He has almost unlimited Chakra from what I remember. -dg-