I thought, when our planes have more than one target, that the system would pick for us the "best" shot.

In this example

http://www.youplay.it/play/bm_GameMove.asp?GameID=123624&UserID=kduke

I have a very poor shot at Grief8--which is what the system gave me-- but there is a shot, at the same distance-- at an enemy plane which is stalling-- a much better shot.

How come?