I think Mauler's utility comes down entirely to how many mofos he can engage at once. How many are likely to be on the table at the first place, how many are likely to get clustered into a big furball for you to exploit, and how likely is your opponent to see what you've got cooking up (and try to target Mauler heavily, before you can pull it off)?
Me, I just feel like auto-damage, and auto-damage to more than one target, at least makes him worth bringing up. When you're specifically talking about just wanting your squadrons to wipe out enemy squadrons, I figure it doesn't hurt to make him part of the conversation.
I completely agree. I have included Mithel in the current iteration of the list, but I don't know how I could possibly squeeze in Chiraneau as well, or if he's worth in in this particular list. Especially since after Mithel gets focused down, you've got 10 points of Chiraneau sitting there not contributing nearly as much as it did while Mithel was still kickin'.
I think a well-positioned Dengar more than makes up for the lack of Chiraneau. Chiraneau allows you to move, but only at speed 2. Dengar allows you to move at whatever speed you like, as long as he's within distance 1 of whatever ship would have been stopping you. And, bearing in mind that that means he can move himself pretty much whenever he likes, you can always shift him to a more convenient location in order to free up the fighter you want to move.