Tiger without question. Gorillas avoid the smaller leopard because they are vulnerable to predation. They also share the same susceptibility to clawing wounds as humans.
Members of Carnivora tend to have one trait shared by different mammalian spieces regardless of size—thick and mobile skin. Unlike humans and other great apes (whose skin are firmly attached to the muscle) their skin can slide across the muscle. Grab your dog by it’s neck, chest or torso to see what I’m talking about. Now grab your own. Wouldn’t take much to damage blood vessels compared to your dog.
So unlike a dog or cat who has more natural resistance to clawing and puncture wounds, a gorilla would be devastated by a cat who regularly takes large game.
And on bite force.
Gorillas do have a strong bite force, but it’s mostly concentrated at the hinge of the mandible to process the ungodly amounts of vegetation they eat, not at the canines, unlike the tiger who actually uses its teeth to kill.
But above all else, it’s not just the tiger’s fangs and claws that would make it the winner, it’s its grappling ability. The ability to contrort its body in many ways, still being a serious threat while on its back in addition to having robust, heavily muscled forelimbs that they use to control and manipulate large game animals as they go in for the killing bite.
