10-tails looked like some mindless beast. But I suppose it will have lots of power, although not really having 8 and 9 in ought to make it considerably weaker, maybe too weak to launch the ultimate genjutsu.

Kyuubi's stunt with throwing Kakashi was the best part of the episode. Too bad Kakashi didn't really put the chance to good use, like you said. Maybe he doesn't have what it takes to fight Obito for real.