If we're being realistic while talking about who's the winrar i'd say these are the percentages :
Ichika : 0% (She's too sweet and pairing her with mc's just too smooth for her to win, kinda gives me a Neko Fujinomiya vibe, will likely become an actor after graduating which decreases the chances of her ending up married)
Itsuki : 60% (She's likely the one to be chosen as she's likely the one that met mc when he was young, kinda is the mc of the quintuplets, ressembles a lot mc's bride attitude-wise and hair-wise, is still tsundere with mc which increases her chance of winning first place after her feelings progress later on in the story)
Miku : 30% (Is the one who we see express her feeling the most for mc, is kinda shy but not tsundere-like which increases her chances, has some cute interactions with mc, is the most liked quintuplet of the readers which decreases drastically her chances of winning)
Yotsuba : 10% (Most childish of the quintuplets, has not declared her love for mc yet, considers mc as a buddy more than a lover, has the most bland personnality and opposes the least opposition to the mc from the beginning which decreases drastically her chances of winning)
Nino : 0% (She's a bitch, she's too tsundere, so tsundere that even character developpement will likely not change her tsundere attitude towards mc even if she ends up winning and we see that the bride's pretty calm and composed, she likes the bad boy in him not the actual him, she has a shit personnality from what we've seen until now)
Who do you think will win and why ?
>inb4 harem ending, the flash forwards show that the bride's alone you dipshits