Just imagine putting two rifles and a couple of boxes of ammo in it and throwing it as far as you can and have it land on concrete. Think about which one you believe will withstand that the best.
I don't have any of those you mentioned but I have a molded one that is similar. I'm afraid the aluminum ones would get bent and dented.
Depending on how much your guns weigh, a 25 pound case with two scoped rifles, a couple boxes of ammo and a rangfinder would usually be less than the 50 pound airline baggage limit.
Also look at the ones with the least protrusions. Hinges, handles, hasps and anything else protruding are the first things to get broken off.