User blog comment:Bige1218/Fairy Tail Strongest Characters (2016)/@comment-24592308-20160624203155/@comment-7418318-20160624210403

Not to mention that power-levels are only minimally relevant for the outcome of a battle.

If they let their guard down, even the strongest characters of Fairy Tail can have their throat cut or heart stabbed from behind by a completely powerless non-mage (except for Mavis and Zeref, but their immortality has nothing to do with power-levels).

Natsu won against Jackal because he could negate all of his abilities save for physical attacks for example.

Obra could completely drain Wendy and Lucy. Does that mean he has more "power" than them?

Cobra clearly has less raw power than Erza, yet due to his ability to hear the movement and thoughts of her, he was still able to bring her down.

And that's not even bringing team-fights, situation, tactics, smartness or the dreaded power of feelings into the mix.

In short: Power levels are almost meaningless for the outcome of a battle and thus a list of power-levels is also meaningless, even in series with consistent power-levels.