I've travelled with TV's, Monitors, Electronics, Aquarium's etc... as we don't have stores where I live and bring back full cases of items via the planes. I've tried every hardcase out there (Densley, Pelican, Samsonite, Zero, even custom ATA cases etc...) and have found the $20 rolling plastic tool chests from like HomeDepot (made by Stanley, called Contractors rolling case or something like that, you can google homedepot and find it) is the best hands down. Sturdy, large wheels, strong handle, lockable, light weight, and square / rectangular size BIG just inside the legal size limit for luggage. I pack clothes around the items tightly and have not had anything break flying across the Pacific. The case is too big for most checkers to toss around and flip it on the luggage carriers, they need to use two hands and carry it on the sides to lift and move it most of the time as it's too bulky.

I should mention that a lot of times HomeDepot does not have them in stock but you can call the local store and they can get it delivered in like two days. It's always a risk but this is how I've had the best luck in over 20 years crossing the Pacific with fragile items. Just my 2 cents....