ROUND 1, MATCH 1
Bruce, The Great White Shark from the film Jaws

25 feet of massive, muscular overbite is what makes this shark a bad ass. Definitely not one to be fucked with.
VS
King Kong, from the film King Kong (Remake)

The broken hearted version of Zero on steroids takes on the big city. Sounds like a Peter Jackson blockbuster to me.
First to 5 votes wins!