War Tobi's - if you run out of subs and manage to throw it in as the opponent attacks it can leave them wide open. Takes timing and practice - and thanks to lag doesn't always work but worth giving a shot. So I guess online *may not* be so practical.
Kiba's is quite useful if you want to catch an opponent off guard while he/she is trying to build up chakra.
It used to be better, where you didn't have to hit with Akamaru to jump in the air, fly over the opponent, drop Tsunade/Sakura on them as you go by and finish by flanking the airborne opponent with a fang over fang.
I'm still very partial to Kabuto's tilt. Even if it got nerfed in a horrible way, it's still great for dropping Karin or Kimimaro right in their face. It's also nice since the three of them make a named team.