Guess I take a different approach. To me, it's about playing the odds. And as I understand it, there are things you can do to tip things in your favour.

The clothing you wear is your primary EDC. It may be the only thing you have, inside the aircraft and out. Insulation is good; flammable is bad.

Second are a few tools that could help you get out. A good bright flashlight, paramedic shears to cut that stuck seatbelt (or your spouse's), sturdy shoes/boots with treads to get you out SAP (and don't kid yourself: in a burning plane, everyone's an SOB, and people push, claw, and climb, -- it's ugly, primal, and predictable).

Third, it's stuff that buys you some time if and when you get out. Clothing first; first aid; signalling; water, shelter, fire; and so on.

That's what little I know. It ain't much, but it makes sense to me.