How does one regenerate from Disease in which Kabuto couldn't even figure out the key to curing? Could Tsunade heal from that very same disease? I doubt it.Lol. So much for his regeneration capabilities, didn't he die due to his illness?
It's been stated that Tsunade can't die in a battle unless you behead her, so not only that but she is the best medic, so overall Tsunade > Kimmimaro.
Once again I will say: Please provide canonical factors as to why you place x > x; take Solo's rebuttal as an example.