Never played FFXIII-2, but I've heard many people saying it was the best of the FFXIII triology for them. Besides, it has Caius, Noel and Yeul. I love them😊.

However, I really like and enjoy FFX-2, and because it is the one I have and already played(never finish, but got near the end), I'ma vote it.

Haven’t played X-2 yet but I disliked XIII-2 even though the story was good at some parts.