User blog comment:CuchulainSetanta/Grendel vs. Wendigo/@comment-181289-20110127021521

I'd have to say Grendel. Grendel gave Beowulf a a relatively tough time, and he was a super-human with great levels of fighting skill. The Wendigo, while malevolent, is generally seen as a hunter of human flesh, not a being focused on a fight, but will take the flesh it can get.