Xebec never fought Prime Roger/Whitebeard/Garp either.
Newbie Yonko Shanks > Loki with Devil Fruit and Ragnir >> Loki with just Ragnir >> base Loki >= HK Harald >> base Harald > a mere Admiral (no diffed by Harald's supposed equal while he was just a rookie)
and then I say prime Roger > Newbie Yonko shanks. You would agree or disagree?

