One of the categories covered on Knot Wars was the Loop Knots. You use loop knots to make a loop in the end of a rig to which the line can be tied. They are also widely used in line-to-line knots.
This finale pits the King Sling Loop against the Two Wrap Hangman, (which scores high in the name category as well).
The Sling is the reigning leader so it's up to the Hangman to knock it off its perch. See which one has the most muscle!