SO due to LATAM cancelling my flight, and rebooking me the next day, I have only a choice of 3D/4D or 1A/1B for a couple. it is an overnight flight, so I'm guessing 3D/4D is the better choice given the advice above?

Doublely disapponted since LAX-SCL was the new config, then changed to old config, then cancelling and booking the next day leaving me only two days in Santiago. (Day prior sold out, two days prior selling two seats but only one open on the seat map, so given the lack of options, too risky to try an oversold flight right 4 days before Xmas).