I like the Heartbreaker costume. Seems very reminiscent of Locke's outfit in VI.
However, her original outfit I don't care for, and the dragoon outfit... I'd prefer XIV's to that. Red Mage isn't bad, but there are a few costumes I would probably like to come in XIV for jobs or something.
P.S. Loved the demo. Way more hyped than I used to be for it.
They even got the marketing right this time!