Boatycall said it all... If you get in any situation where you need locked axles, don't try to power your way out, Use finesse always. Those rabid off roaders that are powering their way up over and out of stuff, those rigs are built and still break stuff.
What I do is, I only use the ARB when I feel it's needed, that is the Detroit out back isn't giving me enough traction and with the camper in the bed, traction isn't usually an issue. With the camper in the bed and the ARB locked in, steering in other than a basically straight line is very tough. Tough on me and tough on the driveline and steering components.
I've never broke anything but I've never pushed the truck that hard. I have a winch as well and I'd rather use the winch if I can. For me, it's camping off road, not an off road competition. Having lockers (for me) is a just in case scenario.
My air bag compressor delivers plenty enough air for the bags and the ARB.