If your build only has room for one crit damage mod, Organ Shatter is the standard choice because it offers a 30% higher flat bonus than Gladiator Might.

For Guild Raid bosses with astronomical defense, Gladiator Might often wins, even on nukers, because it ensures your raw damage isn't nullified.

Imagining a duel between a master of Organ Shatter and a champion of Gladiator Might reveals a fascinating dynamic. In the first ten seconds, the Organ Shatter has the advantage. They dart inside the Gladiator’s reach, aiming a two-fingered strike at the carotid sinus or a vibrating palm at the solar plexus. If the strike lands cleanly, the Gladiator falls instantly—a mountain crumbling into pebbles, undone not by force but by biology.

is a popular alternative that provides +85% critical damage and +60% Heavy Attack Wind-up Speed