So there was a brief question that I posted as a comment on Moon Blade, but I wanted a little more indepth answer. So let's say that there are 2 tile douluo level spirit masters, one with Judgement Sword (like Chen Xin) and one with Moon Blade. Both have mastered their spirit to the utmost, their spirit rings are optimal and their rank is more specificly 99. No Domains. No Spirit Bones.
Which one would win in a measure of attack power?
Which one would win in terms of spirit quality?
Which one would win in a all out fight to the death?