I went with Elezen before even starting the game. I really like how graceful they are, they're not huge or anything, and how height matches well with them...being tall irl sorta helped influence my decision. Also in Tera, I mained Elf so I was already pretty fond of them.

Getting in game, I like their animations. I know many people who don't, but for me personally, I like their fancy exuberance.

The fact Elezen's are scarce gives them more appeal to me. I remember queing up as Dark Knight in Pharos Sirius one day and my whole party was like, "omg an Elezen TANK?" I just really love how I designed my Elezen and I wouldn't give him up for the world.

./ramble