hm i would say hangars kom on the second place and egines are first priority! Think about it, after any anti fighters are killed, and you have some Y-wing, you can easely destroy the engines what renders the ship useless. or as good as anyway. when that is happened, and you did that for all the ships, you can just use guerailla attacks, and more specific, attack a SIDE of a ship. so you can move your ships to that side and the ship is helpless