The highest power has Ghostborn with 41.5 k, followed by Deacon Armstrong with 40 k.
As the champion power is calculated in such a strange way, it doesn't matter at all. I never had a look on it beofre I posted in this thread. My Deacon has only such a high power, because his banner with great substat roll on speed has resistance as main. If I find a accuracy banner with similar speed, I'll change. The champion power we be much lower, the champion much stronger.