In Weiser's view, if "controlling Ash" is considered a skill, then their ranking of this ability from high to low should be her > Vishi > Diya > Sonia.
Note that this only describes the level of ability, not the actual combat power. When it comes to actual combat, Sonia is undoubtedly the top player, the strongest king, Ash is almost defenseless against her—if the idea of the Supreme Star willing to share the world with Ash sounds too risky to believe, but the idea of Ash becoming the Supreme of Magic in the future and handing the world over to Sonia seems perfectly natural to everyone.
Rather than saying she's Ash's lover or comrade, she'd be better described as Ash's spiritual pillar.
