Kakuzu is immune to taijutsu.. Basically rendering most of Kimmimaros abilities useless... Not to mention 5 elements that he can use at the same time...
Kakuzu would win. It's basically 5 on 1 and once again, long range>short range in most cases. Kimimaro has a nice defence but not up against such powerful longe range elemental attacks.
kakuzu would win this one im afraid.. i dont see kimimaros attacks getting through kakuzus earth element skin, and he has to get through that to get to his five hearts and i just dont see that happening.
Again with the silly Kimi threads, Kimi was really cool, but he isn't actually that strong, so pitting him against Akatsuki and other high level ninja is not doing him any favours