I'm surprised so many of you mentioned the foam handle getting torn on the LW bags. Most of the pilots I see have a wrap on it.
[Purdy Neat Handle Wrap] | Stop-Over Store
In fact, there are so many accessories available for the LW bags, you can practically customize it however you need. I've taken two of my other small bags and sewn on male accessory clips for the LW to make them compatible.
Male Clip for Accessory Bags | Stop-Over Store
I've had my LW Stealth for about two years now and have no problems with it. The metal frame has taken quite a few hits, so I've had to take a file to a few places on it to smooth out some of the damage. It was catching and putting little pulled out places on my uniform pants. Otherwise I love it. When I bought it I added an embroidered handle, detachable J hook, and a nylon handle wrap.
The plastic ones I've seen in the airport seem not to fair so well. I've seen some with the frames completely cracked, bent handles, and much more damage in general. Go with the metal stealth.