In order to contextualize the power level of each character, a numerical value has been assigned to each character according to my consideration, based on the fact, who each character is and the capacity of their actions.

Human: 1-20

Elite: 21-45

Anormal: 46- 100

Legendary: 5000>

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Gantz World                                                       

Kato:5 --------------------------------------------- Human

Kishimoto:2 ---------------------------------------- Human

Dog:2

Kurono: 3

Naruto World

Yahiko:20 ------------------------------------------- Human

Konan:18 ------------------------------------------- Human

Nagato:50 ------------------------------------------ Anormal

Kurono:28

High School DxD World

Issei:6

Koneko:26 ------------------------------------------- Elite

Kiba:28 ---------------------------------------------- Elite

Akeno:52 -------------------------------------------- Anormal

Rias:68 ---------------------------------------------- Anormal

Raynare:27 ------------------------------------------- Elite

Kurono(All in):43

Kurono(Evolution):47 ---------------------------------- Anormal

Ddraig:8200 ------------------------------------------ Legendary

These numerical values do not include any type of power-up.