What monster would kill more of Odysseus men?

In Homer's "Odyssey," the monster Scylla poses a significant threat to Odysseus's men, as she is known to snatch and devour sailors from their ships. While Charybdis creates a deadly whirlpool that can swallow the entire ship, Scylla's ability to take multiple lives at once makes her the more lethal option for Odysseus's crew. Her relentless hunger for human flesh leads to the loss of six of his men, illustrating her terrifying effectiveness as a monster. Ultimately, Scylla's predatory nature would likely result in greater casualties among Odysseus's men compared to Charybdis.