I found the Xaela more interesting from a lore standpoint, and their horn/scale color meshed better with the hair/skin color I had in mind.

I'm glad that both clans are getting a good amount of lore in Stormblood, though. I was worried that only the Xaela would be getting much attention, but the Ruby Sea footage from the press release indicates the Raen will have a significant presence in that zone.