I would think that Hidan would get owned first.
Maybe we'll see Ino's new jutsu 
On another note, I think Chouji would be showing some moves of his
own to full utilise his screen time. haha.
If Gai is the reinforcement I think he's dead if he's caught by
Hidan. Against Kakuzu he would stand no chance other than his
speed, as he's basically a taijutsu user. Maybe Neji would be a
good choice
