The morning star is an awesome weapon. It's kinetic powers are to be heralded as well as the damage it causes to shields which is just the same as the subach damages shields. In other words you don't have very good weapons to use, and you want more shield damaging affect, grab the morning star. The morningstar does damage hulls, but it's very negligible, you'll only do like 1% hull damage on any fighter or bomber with it.
After that comes the prometheus and the keyser. They keyser really is a superior weapon to the prometheus. But you've got to give the smaller weapons more credit. Absolutely the subach and mekhu come in first in my head. They're the only automatic weapons in the game, that don't make a punch in your power, and have awesome strength for any mission. They aren't one shot one kill weapons, but that's where you have to successfully learn to spray your target, hell even only having one gun bank with the subach is effective as well. Subachs and mekhus work really great against turrets as well, idk about subsystems, haven't really tried that yet. The subach you tend to get good at if you played transcend, where you're equipped with subachs, and a prometheus r

Let's just say i switched to the subachs only

One really good weapon combo is the prometheus s and the circe. With that combo you can destroy the average fighter in one hit, that's a really fun weapon combo to use in nebula missions. It surprised the hell out of me.
The next weapon i will learn to adore is the maxim. I forget that thing has 3km range all the time, when i did remember, oh yeah i was out of the way. And like someone said, equip the maxim with the circe combo. A really funny thing to do is equip a maxim to the artemis bomber. You then have dual maxims at the normal firing rate, and it's something that's really wimpy against shields, but can punch through them crapily and eventually start ravaging the hulls of ships. The maxim on an artemis is not a good idea. But one thing that sounds really funny, is to equip the akheton sdg disruptor with the circe. It sounds effective, and it wouldn't be useless, but unless you had missiles, you won't be making kills

My vote rests with subach/mekhu

Great weapon for beginners, even better for experienced fs players.