​The favourite, in racing, means very likely to happen, win. The odds-on favourite is the person, horse, dress that is most likely to succeed, to win a race. Embroidered polka dots on crisp cotton poplin is our odds-on favourite. Giant cinched bow for the win. Chalk it up, even money, back to front. Wear it high, low, bow front or bow back, last call for bets on please.