What is Ginny Weasley's favorite animal?

It has never been stated but in Harry Potter and theChamber of Secrets, it did mention she was fond of cats.

That was the reason her brothers thought she was distraught over Mrs. Norris being petrified, although it was later revealed that it was due to the fact that she couldn't remember anything and started to suspect herself.

However, Ginny's patronus is a horse, which might mean that her favorite animal is the horse.

Therefore, it might be either cats or horses.