Another ship that I sometimes like and sometimes do not: Invictus. It seems okay in combat, balanced like a 60 DP, but the campaign stats are obnoxious, namely burn 6 and extremely high minimum crew. Burn 6 means it gets Augmented Engines, and 4000 crew means it gets Efficiency Overhaul. Since I have not taken it to Ordos, I can afford to use the hullmods when I want to beat up human fleets, but I know I will need to dump those campaign mods if I want it useful for Ordos. Unless I have Ziggurat in the fleet as my flagship, I usually use Invictus as my flagship, and I want to use the system as often as possible and use it as a siege weapon. Plus add converted hangar for support fighters. While I have mentioned using Invictus as a colony ship, by the time I get Invictus, I already have my five colonies started, and do not need a massive colony ship to haul lots of crew when there are no more colonies. (I have not attempted full colonization yet with alpha cores, which would have made Invictus useful for hauling crew to new colonies post-endgame.)
Now for more ships I dislike, all Derelicts aside from Rampart.
Picket and Sentry have far too low OP (only 15!) to afford the basic no-shield hullmods without wasting s-mods for them. Picket is a tiny speed demon that can dodge a lot of stuff, and if it had more OP to afford more, it might be able to do something. No matter, they just die.
Warden - It has more OP, but it needs it for armor and anti-EMP. It seems like it can do something, but it just dies like the others.
Defender and Bastillon - No matter what I try, it just fails horribly. What am I supposed to do with it? Fill it with a ton of Mining Lasers or LMGs? Only 60 OP (for Bastillon). Flares for a system, and not the unlimited active green kind, but the dumb limited orange ones used by civilians.
Berserker - Has only 60 OP. Aside from being able to use Mauler/HVD, it is worse than Vanguard in every way. Both cost 6 DP.
Guardian - Overpowered at 40 DP, and it is not playable. It needs to be updated like Radiant (which used to be 40 DP too). Make it playable too. Probably should be worth somewhere between 60 to 75 DP (assuming unlimited missiles gets removed). Get rid of Missile Autoforge builtin if that is the only reason it is not playable.
Derelicts need help to be useful for the player with Automated Ships. I get that Derelicts are supposed to be inferior opponents, but that can be done by sending less DP worth of ships without any cores at the player instead of sending more DP full of ships not worth their DP.