I think Diddy and Pauline are the safest bets.
But ofcourse it should be Wart, everybody agrees with that. Even if they don’t.
From your list I’d be happy with most of these. Just a bit less happy with Pauline, Dixie, Funky, Captain Toad, Paratroopa, Hammer Bro and Luigi’s Mansion King Boo (the Double Dash King Boo is better!)