I love my Antler case -- vv strong and light and the wheels and extender never get fucked up and it can fit under the seat even on Ryanair. It's one with like honeycomb shapes but not sure of the name. Could be Atom?
I can fit my 15" MBP in there and not worry about it getting smashed up. Absolutely indestructible. No compartments tho, just a zipped side and a belted side.