Kakashi with kamui > Obito without any jutsu besides his small scale katon & chakra rods.
No MS Obito >>>> no MS Kakashi: Obito has juubi sized katon, uchiha kaenjin, simple mokuton restraints, life sized shuriken, & his gumbai if you wan't to include it.
If you wanna include it too, the gedo mazou stomps kakashi into the dust without kamui, its a rinnegan jutsu to this would be permissible.
The only way kakashi > obito is when obito has no access to his ninjutsu & kamui.