@Kyle:I don't think he is considering he hasn't even ever shown anything decent jounin worthy(except the knowledge to get around Itachi's eye's)

Naruto having the ability to get past the 8 gates in 3 tails mode isn't the point(even though he easily could with no problems)

Also, we don't even know what Gai is capable of in the 8 gate mode, in any gate

Plus when it comes down to it. Kisame is an s-rank. Gai is not