When i fight people with hokage minato while im using jonin or when im using hokage minato,minato would drop their life to like almost half and jonin minato wouldn't even do that much damage.The only thing i dont like about hokage minato is that you have to target a tagged unit to do the real good damage like you want.Jonin doesn't require you to tag someone.I use both against certain teams but hokage always seems to do better...plus he has that +40 resistance passive.