Hammerhead is fine. Enforcer needs either a bit more flux or a better shield. Enforcer is not that bad of a ship, though. Not the best destroyer, but gets the job done of tanking and killing early-game threats.
Medusa is annoying. It is good, but only with rare weapons (that player will have by endgame when it is too late). Loss of 800 range needlers hurt Medusa a little too. A bit too expensive to do what it does. Could have its OP raised a little, or its DP cost cut down to 10 or 11.
I also think there is something to be said about OP balance vs. combat strength. Some ships are very tight on OP even though they are very strong (for other reasons). I think astral is a good example, it is one of the strongest ships (because of it's system) while also having to routinely leave a large portion of its weapons empty if you want to fit high end fighters like tridents or daggers. I find this to be unsatisfying. I would prefer the system to be nerfed and more OP to be added because gutted load outs feel bad even if they are very strong. I think many of the carriers suffer from this a little, although this might indicate that fighters are too good necessitating carriers to be weakened by a lack of OP.
Same here, except for the nerf of Recall Device. (If Astral was much stronger than Paragon like it was in 0.8a, sure. But right now, Astral is fine except for no OP to use anything except bombers.) Nearly all carriers are very OP starved even if they can kill things with fighters. I groan when I read "raise OP cost" of fighters, when carriers are already giving up almost everything (weapons, flux stats, hullmods) just to do their job of using fighters. Nearly all of my dedicated carriers are unarmed or nearly so (with Drover and Astral being the worst cases). 0 OP should not be the baseline for using fighters. 8 OP should be (or 12 for obvious bomber ships like Astral).
Come to think of it, I like to see something like Heavy Ballistics Integration that shaves OP off of all weapons (or make them free), or at least all PD weapons, on dedicated carriers, so they can put some weapons instead of leaving every mount empty just to put fighters on the hull.
Not sure what to make of Legion. The game considers it a dedicated carrier, though it feels more like a warship that can use fighters decently, and fights better as a warship with (its own) fighter support.