Here's my two cents. Skipping rope, like running, can be used to condition yourself for endurance. Here's 2 sample drills that both can be used to build endurance:
: alternate working the rope fast performing a "high stepping" motion and working the rope at a slightly slower speed, 30 seconds each for 2 - 3 minutes.
: alternate jogging and sprinting during a session. A variation to the rope exercise, yet just as effective.
Though it shares endurance development benefits with running, skipping rope stands apart from running as it can be used to develop your balance, coordination, agility and footwork as well as endurance.
So it just depends on what you want to do as both are invaluable to developing atheletes.