According to some study,

Today I'm giving a try to:

Patrol leader 40 (52)

gunner

Fleet officer

engine upgrade

Rexler 37 (47)

HLC

Predator

1 Point bid against Corran, or an intelligence agent. You can also swap the engine, but this hurts the decimator a lot. This list's is the final advice Theorist gave me, and I really want to try it. The second option I'm willing to try is:

Rexler 37 (46)

HLC

Lone Wolf

Oicunn 42 (53)

Predator

Gunner

Rebel Captive

Still 1 point bid that can be swapped for something, even Predator instead of Lone Wolf. Oicunn as a close quarters basterd (ramming or not) and Rexler in the outskirts shooting like madman. Nobody is really tanky, but the list punishes if you focus only one of them. I miss Mara Jade in Oicunn, but you can't have everything in life.

In your first list, I wonder if Fleet Officer will in fact be worthwhile. I can see it being situational (against large base ships it has the potential for huge pay-off when it helps Brath activate his ability) but against small base ships, I can't see it doing a whole lot...

I like your second list but feel Oicunn needs either engine or expert handling. I find decimators die way too quickly without some movement action to save them from focussed fire, but that could just be me?

I've been looking forward to trying:

Vessery w/ VI + HLC

Kenkirk w/ expert handling, rebel captive, Isard & weapon engineer

According to some mathwingers out there, 4 red dice and 3 defense dice are the best to exploit Lone Wolf. I really want to try that out with Rexler. Oicunn will not ram unless it's very beneficial, because it will be moving around with his predator + focus + gunner hurting a lot. Rebel captive may prove not that useful in a meta that will see less and less phantoms, but who knows. And IF there's a Phantom/Soontir out there, then I'll consider ramming it if I see a chance. The movement upgrades could prove useful against swarms for Oicunn, but usually Oicun will break away with fast forwad 4 or turn/bank 3 to avoid fire of 2+ ships. Eventually he will receive fire, or even be destroyed, but there's a huge rexler spitting 4 dice with a reroll and probably a focus doing its thing. Heck, it's also hard to predict with a full swarm where is Oicunn ending.

Time will tell, in my first game it proved not that useful with only 3 dice and double focus via Fleet Officer. Maybe now, with two supper offensive guys, things may change.

Against other decimators I'm going to suffer the rebel captive I'm looking for a way to solve that. If I give up just the HLC I would get SO many shinies... but it's 4 dice!