I use a LW 22" stealth. I have had the same bag for 11 years and have sent it in twice to get refurbished. When I commuted on RJs, that bag got the hell beat out of it by the ground crew and the "tag it and leave it at the door" policy.

I got it refurbished when I went to mainline, the back is good as new. I commute still, but no longer on RJs. This bag is a tank. If it is "too heavy" because of the metal then you need to go to the gym.

Both times I sent it in for refurbishing through the stopover store. I got a loaner and the bag came back looking brand new for ~$125. If you send it in for a refurb during the first three years it is free as most of the parts are under warranty. If you're a career airline pilot and want a bag that can stand up to just about anything, LW 22" is the way to go. When I switch to intl, I'll probably opt for the 26", but until then I am happy with the 22".