Team Gai, but I'm not that sure. Neji and Lee are very strong, but we can't forget Shino, who can use a very high level of insect jutsus. Also, Hinata may counter Neji for a while (Neji would win in the end), so Shino can fight agaist Lee. Kiba should have no problems with Tenten... Although I'm not sure, I think team Gai would win.
I think Team kurenai would win because I think i goes like this.
Kiba > Ten Ten
Shino > Lee
Neji > Hinata
That is my personal opinion. I think that Kurenai would win more battle then Gai, I say blame ten ten. haaha The only person I think ten ten could beat is Ino, but then again anyone can beat Ino.
neji is a jonin and lee is pretty strong but they have a little weak tenten. Knowing if the advirsy would attack her neji and lee would have to protect her making her a obsticle for them. So shino, hinata and kiba with akamaru would beat the crap outta them!
I say team kurnai bcuz although Neji may beat hinata he would have to stand up to shino and kiba..There is no doubt that ten ten will lose bcuz Kiba is way too wild. While Shino can easily have the bugs eat out lee's chakra so he couldn't open the eight gates. so there..Besides genjutsu can totally beat taijutsu..Just as long as the user keeps a safe distance.
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Probably team guy would win.
Tenten might go down to Hinata or someone, but overall, team guy is probably stronger. Shino might have something tricky with his bugs up his sleeve though.