Warning - Mostly tongue in cheek
I always thought the Gorn were dinosauroids (or whatever). As a result the Gorn in TOS fit the 1960's popular perception of dino's. Big, slow, powerful and dumb (but not so dumb they cant suss warp travel). Added to that it was a guy in a rubber suit, that's never graceful.
Anyways, if this were a TNG episode Worf goes down as the Gorn makes Worf his bitch. Picard then talks everybody into a state where they let everybody go just so he'll shut up.
If this were DS9 then after a loooong, epic battle with flashbacks and maybe a dream sequence Worf fianally kills the Gorn. Sisko then monologues on the futility of it all, why cant we just be friends etc until the Metroids give up and leave.
If there are no guys with cameras arround I give it to Worf. He's a trained security dude and presumably has taken 'Beating the ever loving crap out of aliens bigger than you 304' while the Gorn, while big still had most of his training based around 'Keeping larger crew members from eating the smaller ones 512' and other captainy stuff. Besides Worf will get to unleash his frustrations at having been beaten up so often just to estabish the alien of the week as a threat.
Don't abandon democracy folks, or an alien star-god may replace your ruler. - NecronLord