Since BBBAA comes in at 100 points for the cheapest pilots, there is really no variation other than the way you would fly it. My initial thought is to have BBB in the middle and each A on one side... but obviously it's going to depend on your opponent.
Going up against a TIE swarm I would probably want one A slightly ahead of 2 Bs in the middle, with an extra A and B swooping in from the side. The idea here is for the A to be the first ship they can target - hopefully he'll avoid some hits.
What are your thoughts on going up against a swarm or other builds with BBBAA?