OK "Corky's law of AH Air Combat" Posted a few pages back but I'll cut and paste.
Pick, furball, bomb buildings, GV to your hearts content. There is no right way But keep in mind that how you treat the players in the game, good, bad or indifferent makes a difference. Don't expect a pat on the back if you show a lack of courtesy. If that bothers you, it's your problem. My own experience is that if you treat folks decently, the game is more fun. Again, as has been pointed out many times in this thread. This is just an opinion, not law. Do with it what you want.