I went with a bat, because I always felt strongly towards them. Not as simple as just "they're misunderstood", which no doubt they are. But I love how they function in their societies, as well as their roles in ecology and cultures worldwide.
Of course, their gothy awesomeness is always fun, but I genuinely always loved them for what they were. I've been a supporter of the Bat World Sanctuary for a while now. Honestly, it was my artist friend who got me into the furry world in the first place who brought it out of me. She did a doodle of me as a bat anthro, and it just rolled from there. I looked at it and thought "Woah! That's SO me."
Of course it was a basic start, but it all fit well, and everything fell into place.
The only thing that's not been a constant is a name!