OK, this discussion has pretty well convinced me that "all Gnats" is the best way to go... partly because that gives us a homogeneous speed (all of them 9400 kps instead of varying between 9400 and 4300 kps), partly because it allows us to carry the maximum number (120 Fighters instead of 72-or-more), and partly because it disperses our alpha-strike into 120 separate salvos of one missile each, making it a major headache to intercept with PD.
Good discussion so far, folks.
Ok, far do's. Will you use the heavier fighters for PDCs?