Morals: irrelevant as both can willfully kill most/all opponents when needed.
Kakashi is at power level he is at of Fourth ninja war arc and has executioners blade (otherwise known as Kubikiribōchō)
Scorpion can not just instantly do a fatality though does have easy access as he normally would to abilities associated with them (summoning lava, fire, teleportation)
resource links (spoiler warning):
Also if this is a mismatch to a considerable degree or have done anything else wrong please let me know as this is the first fight topic, first topic in general I have posted.