Sorry.
I'm safe to say that foxes, and most canines, are usually favorites to be fursonas because they're commonly known cute animals. I mean, I don't find a giraffe "cute," or anything. (No offense, giraffes,) but that general area is mostly popular in cute animals. And cute animals usually lead to the fursona chosen. Then there's some people who choose the animal they do because it's a representation of "them." Now, they can totally be pulling your leg, or it's a real deep spritual thing that can only be left respect. Either way, it's not too bad for there to be a popular animal.