The Most Dreaded Helicopter in The World The Boeing AH-64 Apache Attack Helicopter was known to be the preeminent and most powerful anti-armor weapon . The latest military news : The Most Dreaded Helicopter in The World The Boeing AH-64 Apache Attack Helicopter was known to be the preeminent and most . There are a total of twenty-seven military attack helicopters in the world from origin to present day. But, which one is the best attack helicopter in the world right . THIS IS THE WORLDS MOST POWERFUL HELICOPTER.