Good idea! I'll be looking at this closely as I'm looking at upgrading my "long haul" bag in the next few months (currently I've got a soft case samsonite and looking to go to hardcase).
We bought Mrs tmdellit a Samsonite Cosmolite 81cm (
Samsonite Cosmolite 3 81cm Spinner - Samsonite AU) about 5-6 years ago as her main "long haul" bag. Has no doubt been bashed around on everything from Emirates to EasyJet, but never had an issue.
Also grabbed a couple of matching Carry-ons (
Samsonite Cosmolite 3 55cm Spinner - Samsonite AU) which have been unreal. Mine has probably been on upwards of 200 flights both as cabin baggage, and checked in, and apart from a few scuffs, is as good as the day we bought it. Furthermore, it also doubles as my seat whenever I have to wait somewhere (not bad considering my 90kg frame).
Don't get me wrong, they're expensive (though I didn't pay the $$ that the Samsonite website says that they're worth), but I really can't fault them.
Sorry no pics of how they're fairing, but the links should show you what they look like new.
Look forward to seeing what others have to say!