Whoah, wait a minute here. Don't you know that...
Rabbit - favourite animal of Nino
Room temp water - favourite drink of Nino
Nail polish - in HS era, only Nino wears it
And all of this is somehow trumped with Itsuki having 2 extra frame shots? I personally like the 'wedding cake is eaten, presumably by Itsuki = Itsuki killing Nino's chances of being the bride' better, especially when Itsuki has no claim to the above three shots otherwise.
As for the lyrics, IMO linking that to Itsuki is as bogus as >>185466124
linking the one hand to Nino, so let's not be hypocritical, shall we?
Seriously though, it's not as if Itsuki needs the ED to win, when the manga has PLENTY to let her get by (contrary to people claiming she's irrelevant or she doesn't love him might suggest). Give the Ninofags their ED, you'll be laughing in the end anyway when Itsuki wins.