User blog comment:B214/Question & Answers 5/@comment-82.199.209.134-20160428230218/@comment-24.113.129.70-20160429015327

Satan-Class is lower than God-Class. The reason both are mentioned whenever someone describes the power Longinus-Class sacred gears, is to emphasize that even the most powerfull of either side can be killed.

Although I would consider Satan-Class being lower than God-Class as more of a general "guideline" rather than an absolute "rule."

Also, I think everyone considers "power" and "strength" to be the same thing. They're not. "Power" is the capability to destroy everything, while "strength" is the ability to control your power to destroy only what you want to.

While Loki and Indra might be only a little more powerful than a satan, their ability to control their power to give them the edge in a fight is what makes them so much stronger.

You can have all the power you want, but if your opponent is better at using their power than you are, even if they're less powerful than you, they will most likely win the fight. A prime example of this is Wukong vs. Issei or Vali. Both Issei and Vali have the power to instant-kill Wukong, but his years of experience and superior skill in combat makes him stronger.