I have a hard time understanding how humans can even think that Nino or Ichika could be considered anything but trash. Nino hated Uesugi from day one and acted like a spoiled bitch. Then she did a complete 180 for pretty much no reason whatsoever and childishly professed her love, which can be nothing more than a frivolous crush with no depth or even internal understanding. Ichika was fine in my book at first, but the most disgusting lies, deceit and betrayal that she resorted to, put her far below Nino on the shit tier list. What she did is unforgivable and unacceptable. Eatsuki is nothing but a first girl trope that has no merit to it whatsoever, apart from a few rare instances, she has no redeeming qualities. Youtsuba is nice, but I can't appreciate her personality because she is too much of a doormat, and her hairstyle is bleh. Miku earnestly loves Uesugi, she loved him for the longest time and she was always kind, friendly, and supportive of him. She has genuine, deep feelings and she has thought them through, and is working hard to improve herself for the sake of the person she loves. Nobody else is trying to improve themselves. Nino is trying to selfishly hog Uesugi, Ichika is trying to get him by destroying everyone else around her, Eatsuki doesn't care, and Youtsuba is the opposite of Ichika. Miku is the only one doing this the right way, not forcing it, not resorting to tricks, but rather putting in effort and goodwill and for reasons that she understands very well.
Shame on you for not recognizing Miku as your one and true goddess.
Convert now to the Church of Miku, or forever lose your humanity and burn in harem hell.