I echo you on the ships; I think they feel really good to play. Only outliers I personally encountered are:
1. The frigates, which are honestly fine, they just seem to blow up on me a lot so I trend towards tougher frigates (Brawler et al). Just personal.
2. The Daze, which has two major problems as I see it: A) it's a huge target and doesn't do anything to counter/utilize it. It isn't super tanky to eat those hits, and it isn't super offensive to make taking those hits worth it. B) It doesn't really fill a role. It's kind of just...a ship. Especially with Cruisers, competition for a slot is fierce and in all cases I'd take a Haze instead since it has pretty much the same loadout, a thinner profile, and a flicker drive. Updating its system sounds like a solid idea, and another option that might be interesting for it would be to utilize it's small slots more heavily for fleet PD duty. Maybe set it with Integrated PD AI? The player could either up-gun it with damaging smalls and be aggressive, possibly utilizing an updated system to take advantage, or just keep them as PD turrets that simply work better than average and keep it in the fleet line to protect against missile/fight spam.
3. The Pocket Gust, which is kind of...weird, I guess? Nothing against the ship, it just always seemed like an oddity in the fleet for some reason. Maybe just me. It's a tiny Gust! Kind of cute.
For weapons, if the Banish was 2-shots in small slot I'd definitely use it there more often. It's a good opener and a strong missile type for ships that already have armor damage covered. I also really enjoy the launch/track/ignite system they use. It's really fun in-game.
With Wanzers, I...honestly don't know what to use half the time. I kind of pick what seems good and just assume they're doing good things. It's hard for me to parse what they're doing/capable of doing like I can with ships just by stats, and some of the Wanzer descriptions are a little confusing for me. The lore on them is awesome, but I have a hard time figuring out what they're meant for sometimes, and I have zero idea what most of their systems are or do since it's just a quote. I usually just go by the tag - "Bodyguard means it kills fighters I guess?", etc. Vanilla fighters are easier on me; I know what a Talon, Broadsword, and Khopesh all do from their loadouts and especially their descriptions and can make easier decisions, but I -like- using Wanzers so I take those instead, even if I don't really know what's going on. I guess for me, mostly I'd just like a clearer picture for what each Wanzer is intended for and what it does. As a player I'm relying on the tooltip to understand your intent with the item, so preferably they should be as clear and transparent as possible (not saying they shouldn't have cool lore in them though).