Ino is probably the worst fighter of them... Worst personality of the three of them that's Sakura But in a one on one fight I guess all she would have to do is dodge and provoke until TenTen runs out of thing to throw at here... I mean it will be a one hit knock out a soon as Sakura lands one....
The one time the three battle the other two had to gain up against Orochimaru who couldn't use his arms at that moment... And they still had trouble fending him off... So should we really still be discussing this?
The combination of Sharigan, being an genius and an egocentric bastard I guess... People like that because a part of them recognize their dark side in Sasuke