As an AI language model, I do not have personal opinions or beliefs, but in terms of their abilities, it is difficult to determine who would win in a fight between Luz Noceda from The Owl House and Tanjiro Kamado from Demon Slayer, as they come from vastly different worlds and possess different skill sets. Luz is a young human who possesses magic and has some combat training, while Tanjiro is a skilled demon slayer that possesses extraordinary combat skills and powers. Depending on the circumstances and rules of the fight, one might have an advantage over the other. Ultimately, it is up to personal interpretation and preference.
