I have had Tumi, Briggs & Riley, Travelpro. We also have Kirkland and High Sierra (or something like that) in the family. I thought the Tumi designs were not as intelligent from a user standpoint, though that has changed somewhat. I prefer the Travelpro. In my opinion, the Briggs & Riley suiter that was described above is pretty small and is awkward to roll and use relative to the Travelpro.

I have a Pathfinder small rolling garment bag, which is not carry-on size but fits overhead and when I am flying business class or first class overseas (almost always the case), they let me take it on. I've got it with me in Kuala Lumpur today. Briggs & Riley also has one, but their design is weak. It doesn't fit my suits length-wise, so I would have to fold the last bit of the suit. Bring your suit to the store to try it on (I'm only 6'1").

David Rowell reviewed a bunch of rolling bags. His website is: http://www.thetravelinsider.info/current.htm.