This one isn't bad. You have two
PS 10s with decent shooting on each, but when things go bad they're going to be
really bad. Both ships have obvious weaknesses (concentrated fire from multiple ships for the decimator, poor durability for the defender). If one ship meets its counter and dies early the other one probably won't be enough to win the game for you.
List 2
This is probably worse than list #1. You make the decimator better and the defender worse, which is probably not a good idea since the decimator is the easier target. Once RAC goes down after being the priority target Vessery is going to struggle to accomplish much before joining him in the afterlife.
List 3
This is not a bad concept, but it needs a bit of work. EH on the firespray is probably redundant, but the combination of
PTL and the K4 will give you three actions per turn. And four meatshield z-95s is good support for a firespray. The one thing I'm uncertain about is the
HLC since large bases with engine upgrade tend to get up close very quickly and then fire a lot of rear-arc shots. If you can manage to stay at long range consistently in your games it's worth keeping, otherwise I'd probably drop it and use the points to upgrade to Kath Scarlet or Boba Fett. Both of them have really powerful abilities on top of higher
PS. A 4-dice attack from your rear arc (5 at range 1!) lets you ignore the
HLC's range limits and force people to chase you while taking damage, and re-rolling dice at range 1 is great on a ship that will often find itself boosting into the middle of of everything.