I don't understand the Kaho or Minori love, Kaho is just genuinely worse than both of them in every way. And Minori is just an annoying brat who has to be "first" in everything. The real gentleman's choice is Tsubasa, who may be an airhead, but overall has better features than both. Thus, the true tier list is Tsubasa > power gap > Minori > shit > HUGE POWER GAP > Kaho.