God's Knight Harald vs. Rocks D. Xebec: Who Would Prevail?

In the legendary history of the One Piece world, Rocks D. Xebec stood as a monstrous threat that required the combined might of Gol D. Roger and Monkey D. Garp in their prime to defeat. Meanwhile, the enigmatic God's Knight Harald posed an equally apocalyptic challenge, demanding the coordinated efforts of a young Shanks, the formidable Scopper Gaban, and the ancient giant Ragnir—wielder of the Mythical Zoan Nidhöggr fruit and the sentient Risu Risu no Mi warhammer. History notes that in their base forms, these two titans were perfectly matched. We want to know: if these two legendary powerhouses were to clash at their absolute peak, who would emerge victorious?