Rosalina. To Hell with Princess Peach, she's the one who emasculated and humiliated Mario at the end of Odyssey and almost left him behind on the moon. And then passive-aggressively accused him of being a tyrant in the post-game. If Mario has ANY love or respect for himself, he'll take Rosalina. Daisy, if Rosalina isn't available. But not Peach. After what Peach did to Mario, a chain chomp would be a better date for Mario than Peach, oh my God!

Peach on the right, Daisy on the left, Rosalina in the middle.