This episode is my personal #1 favorite. It features Jack at his best and some of the coolest visual yet on the show. The sound FX and sound editing were some of the best I've ever heard, especially for a cartoon.
My favorite part is when Jack figures out the archers are shooting at him based on what they hear and not what they see and he deprives himself of sight via blindfold in order to take them on.
I don't think any other episode can compare to this one (though, a close contender is Seasons of Death); I could watch it over and over and not get bored!