@GolfAlphaMike Itsuki was the one to kiss him under the bell though. You are as much speculating that it wasn't her as I am in saying it was. She has been in love with him from the very beginning, she just hides her feelings well, so well in fact that you could say she is a bland and boring character that never loved him. Its all a giant trick to throw you off the trail that she loves him, kissed him under the bell, was Rena, and is his future wife.
Everyone is just grasping at straws to make their waifu end up as the winner, but deep down we all know Itsuki is going to win. And any reason or speculation we come up with to make our choices win will just be swept away when the answer is revealed, and the reasoning will be probably be flimsy at best.
Itsuki is going to win, but Nino and Miku are the best girls.