As a certified luggage fetishist (more to be pitied than scorned), I'm not a big fan of big duffel bags, as everything gets jumbled up inside. Call me anal, but I like to keep my clothes and stuff organized and neat. If I need to do carryon, I go with an old black Hartmann tri-zip bag with a Red Oxx shoulder strap. It has three equally-sized compartments that keep my stuff organized, plus on one side it has a sleeve compartment and zippered ticket pocket. The other side has yet another compartment that seals up with a flap and latch. The bag is made of a light nylon material. This gives me maximum packing space (no room taken up by a telescoping handle mechanism or wheels) and terrific organization. I also have a somewhat similar Briggs and Riley in Cordura but with two smaller zip up compartments and a larger central one. I can't tell you how much service these bags have given me. For shorter trips when I am simply in casual wear, I have an even smaller ballistic nylon Mountain Equipment Co-op bag that converts to a back pack. It has one large compartment and a flat zip up pocket on the front. Very handy, nearly indestructable and cheap ($46). Alas, both this and the Hartmann are no longer made, but you can find them used on eBay. Checked luggage is another story. I also have a variety of Andiamo pullmans with wheels and telescoping handle -- the heavy and indestructable Valoroso 20" suiter and 28", as well as the lighter Bravo 26 and 28" ones. Both are trimmed with leather. The Valoroso is simply the sturdiest (if somewhat inelegant looking) suitcase made with a mixed Cordura/Ballistic nylon fabric that looks like fabric, and incredibly heavy YYK metal zippers. The Bravo line is of Tumi-like construction (same grade of Cordura fabric) and appearance, with YYK coil zippers. Both come with a variety of pockets and accessories for packing suits, shirts, and have the sturdiest provision for expansion that I have seen on expandable pullmans. Alas, Andiamo went out of business a little over a year ago. They lost the contract providing luggage for Costco, which is where most of their income came from, and that resulted in the demise of their premium lines as well. Liquidation World is selling off the last remains of their stock at a tiny fraction of what they originally went for -- my most recent acquisition was the Bravo 26" that originally sold for $585. I got it for $100. If you can snap one of these up, I recommend them.