Even though the officials haven't explicitly explained the nuances between the 'Individual Combat Power Ranking' and the 'Individual Comprehensive Strength Ranking', they also have not released the ranking criteria and underlying data. However, Motan has approximately analyzed it by now.
Simply put, 'Individual Combat Power' refers to the player's own fighting ability. The things shown in the character panel should be the only assessment criteria. For instance, the Rank 2 wizard Cordova, although Motan doesn't know how strong his basic attributes are, his Rune Creations, which can brawl head-to-head with the likes of Femigel, an adult giant dragon, clearly wouldn't be weak. He can definitely be considered as an elite warrior among players.
Yet, Cordova is only ranked second…