I once found this picture from Empire at War which I think generally captures what I would hope for in the attack on the Executor. Ackbar orders the concentrated fire; several capital ships begin converging, and I think most of them should actually take up positions astride the Executor; Home One is not excluded from the battle (and in this picture, I imagine Home One as the larger cruiser, as it was intended to be a larger ship in spite of EU "canonical" descriptions); several fighters are shown swarming the massive ship, including B-wings and Y-wings unleashing their heavy ordnance (yes, Y-wings were the original bombers, which were then being fazed out by the B-wings); two A-wings manage to take out the shield generator; etc. I really think we need to see some big ship-to-ship fighting, as well as the smaller fighters harassing and damaging what they can. We voted in the first round to have a Y-wing bomb the Executor (something I forgot to include in the script), and I think the B-wings should do the same. This could explain their weakened status and why the A-wings managed to get close enough and provide enough fire power to take out the generator.

Oh, I just found this picture. It captures the broadside firing I imagine of the capital ships.